[BAEL-8456] - Moved Java Date articles into a new module - 'java-dates'
This commit is contained in:
amit2103
@@ -13,12 +13,8 @@
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- [Strategy Design Pattern in Java 8](http://www.baeldung.com/java-strategy-pattern)
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- [Exceptions in Java 8 Lambda Expressions](http://www.baeldung.com/java-lambda-exceptions)
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- [Guide to Java 8 Comparator.comparing()](http://www.baeldung.com/java-8-comparator-comparing)
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- [Introduction to the Java 8 Date/Time API](http://www.baeldung.com/java-8-date-time-intro)
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- [Migrating to the New Java 8 Date Time API](http://www.baeldung.com/migrating-to-java-8-date-time-api)
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- [Guide To Java 8 Optional](http://www.baeldung.com/java-optional)
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- [Guide to the Java 8 forEach](http://www.baeldung.com/foreach-java)
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- [Get the Current Date, Time and Timestamp in Java 8](http://www.baeldung.com/current-date-time-and-timestamp-in-java-8)
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- [TemporalAdjuster in Java](http://www.baeldung.com/java-temporal-adjuster)
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- [Finding Max/Min of a List or Collection](http://www.baeldung.com/java-collection-min-max)
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- [Java Base64 Encoding and Decoding](http://www.baeldung.com/java-base64-encode-and-decode)
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- [The Difference Between map() and flatMap()](http://www.baeldung.com/java-difference-map-and-flatmap)
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@@ -1,54 +0,0 @@
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package com.baeldung.datetime;
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import java.time.Duration;
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import java.time.Instant;
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import java.time.LocalDateTime;
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import java.time.ZonedDateTime;
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import java.time.temporal.ChronoUnit;
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import java.util.Calendar;
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import java.util.Date;
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import org.apache.commons.lang3.time.DateUtils;
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public class AddHoursToDate {
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public Date addHoursToJavaUtilDate(Date date, int hours) {
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Calendar calendar = Calendar.getInstance();
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calendar.setTime(date);
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calendar.add(Calendar.HOUR_OF_DAY, hours);
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return calendar.getTime();
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}
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public Date addHoursToDateUsingInstant(Date date, int hours) {
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return Date.from(date.toInstant()
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.plus(Duration.ofHours(hours)));
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}
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public LocalDateTime addHoursToLocalDateTime(LocalDateTime localDateTime, int hours) {
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return localDateTime.plusHours(hours);
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}
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public LocalDateTime subtractHoursToLocalDateTime(LocalDateTime localDateTime, int hours) {
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return localDateTime.minusHours(hours);
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}
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public ZonedDateTime addHoursToZonedDateTime(ZonedDateTime zonedDateTime, int hours) {
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return zonedDateTime.plusHours(hours);
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}
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public ZonedDateTime subtractHoursToZonedDateTime(ZonedDateTime zonedDateTime, int hours) {
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return zonedDateTime.minusHours(hours);
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}
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public Instant addHoursToInstant(Instant instant, int hours) {
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return instant.plus(hours, ChronoUnit.HOURS);
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}
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public Instant subtractHoursToInstant(Instant instant, int hours) {
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return instant.minus(hours, ChronoUnit.HOURS);
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}
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public Date addHoursWithApacheCommons(Date date, int hours) {
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return DateUtils.addHours(date, hours);
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}
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}
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@@ -1,2 +0,0 @@
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### Relevant Articles:
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- [Introduction to the Java 8 Date/Time API](http://www.baeldung.com/java-8-date-time-intro)
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@@ -1,15 +0,0 @@
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package com.baeldung.datetime;
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import java.time.Duration;
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import java.time.LocalTime;
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public class UseDuration {
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public LocalTime modifyDates(LocalTime localTime, Duration duration) {
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return localTime.plus(duration);
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}
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public Duration getDifferenceBetweenDates(LocalTime localTime1, LocalTime localTime2) {
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return Duration.between(localTime1, localTime2);
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}
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}
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@@ -1,73 +0,0 @@
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package com.baeldung.datetime;
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import java.time.DayOfWeek;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.LocalTime;
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import java.time.temporal.ChronoUnit;
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import java.time.temporal.TemporalAdjusters;
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class UseLocalDate {
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LocalDate getLocalDateUsingFactoryOfMethod(int year, int month, int dayOfMonth) {
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return LocalDate.of(year, month, dayOfMonth);
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}
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LocalDate getLocalDateUsingParseMethod(String representation) {
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return LocalDate.parse(representation);
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}
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LocalDate getLocalDateFromClock() {
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LocalDate localDate = LocalDate.now();
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return localDate;
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}
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LocalDate getNextDay(LocalDate localDate) {
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return localDate.plusDays(1);
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}
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LocalDate getPreviousDay(LocalDate localDate) {
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return localDate.minus(1, ChronoUnit.DAYS);
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}
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DayOfWeek getDayOfWeek(LocalDate localDate) {
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DayOfWeek day = localDate.getDayOfWeek();
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return day;
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}
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LocalDate getFirstDayOfMonth() {
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LocalDate firstDayOfMonth = LocalDate.now().with(TemporalAdjusters.firstDayOfMonth());
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return firstDayOfMonth;
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}
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LocalDateTime getStartOfDay(LocalDate localDate) {
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LocalDateTime startofDay = localDate.atStartOfDay();
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return startofDay;
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}
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LocalDateTime getStartOfDayOfLocalDate(LocalDate localDate) {
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LocalDateTime startofDay = LocalDateTime.of(localDate, LocalTime.MIDNIGHT);
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return startofDay;
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}
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LocalDateTime getStartOfDayAtMinTime(LocalDate localDate) {
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LocalDateTime startofDay = localDate.atTime(LocalTime.MIN);
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return startofDay;
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}
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LocalDateTime getStartOfDayAtMidnightTime(LocalDate localDate) {
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LocalDateTime startofDay = localDate.atTime(LocalTime.MIDNIGHT);
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return startofDay;
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}
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LocalDateTime getEndOfDay(LocalDate localDate) {
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LocalDateTime endOfDay = localDate.atTime(LocalTime.MAX);
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return endOfDay;
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}
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LocalDateTime getEndOfDayFromLocalTime(LocalDate localDate) {
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LocalDateTime endOfDate = LocalTime.MAX.atDate(localDate);
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return endOfDate;
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}
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}
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@@ -1,24 +0,0 @@
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package com.baeldung.datetime;
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import java.time.LocalDateTime;
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import java.time.LocalTime;
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import java.time.temporal.ChronoField;
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public class UseLocalDateTime {
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public LocalDateTime getLocalDateTimeUsingParseMethod(String representation) {
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return LocalDateTime.parse(representation);
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}
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LocalDateTime getEndOfDayFromLocalDateTimeDirectly(LocalDateTime localDateTime) {
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LocalDateTime endOfDate = localDateTime.with(ChronoField.NANO_OF_DAY, LocalTime.MAX.toNanoOfDay());
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return endOfDate;
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}
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LocalDateTime getEndOfDayFromLocalDateTime(LocalDateTime localDateTime) {
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LocalDateTime endOfDate = localDateTime.toLocalDate()
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.atTime(LocalTime.MAX);
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return endOfDate;
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}
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}
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@@ -1,31 +0,0 @@
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package com.baeldung.datetime;
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import java.time.LocalTime;
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import java.time.temporal.ChronoUnit;
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public class UseLocalTime {
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LocalTime getLocalTimeUsingFactoryOfMethod(int hour, int min, int seconds) {
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return LocalTime.of(hour, min, seconds);
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}
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LocalTime getLocalTimeUsingParseMethod(String timeRepresentation) {
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return LocalTime.parse(timeRepresentation);
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}
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private LocalTime getLocalTimeFromClock() {
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return LocalTime.now();
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}
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LocalTime addAnHour(LocalTime localTime) {
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return localTime.plus(1, ChronoUnit.HOURS);
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}
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int getHourFromLocalTime(LocalTime localTime) {
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return localTime.getHour();
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}
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LocalTime getLocalTimeWithMinuteSetToValue(LocalTime localTime, int minute) {
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return localTime.withMinute(minute);
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}
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}
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@@ -1,15 +0,0 @@
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package com.baeldung.datetime;
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import java.time.LocalDate;
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import java.time.Period;
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class UsePeriod {
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LocalDate modifyDates(LocalDate localDate, Period period) {
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return localDate.plus(period);
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}
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Period getDifferenceBetweenDates(LocalDate localDate1, LocalDate localDate2) {
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return Period.between(localDate1, localDate2);
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}
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}
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@@ -1,17 +0,0 @@
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package com.baeldung.datetime;
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import java.time.LocalDateTime;
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import java.time.ZoneId;
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import java.util.Calendar;
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import java.util.Date;
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public class UseToInstant {
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public LocalDateTime convertDateToLocalDate(Date date) {
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return LocalDateTime.ofInstant(date.toInstant(), ZoneId.systemDefault());
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}
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public LocalDateTime convertDateToLocalDate(Calendar calendar) {
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return LocalDateTime.ofInstant(calendar.toInstant(), ZoneId.systemDefault());
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}
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}
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@@ -1,42 +0,0 @@
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package com.baeldung.datetime;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.ZoneId;
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import java.time.ZonedDateTime;
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import java.time.temporal.ChronoField;
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class UseZonedDateTime {
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ZonedDateTime getZonedDateTime(LocalDateTime localDateTime, ZoneId zoneId) {
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return ZonedDateTime.of(localDateTime, zoneId);
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}
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ZonedDateTime getStartOfDay(LocalDate localDate, ZoneId zone) {
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ZonedDateTime startofDay = localDate.atStartOfDay()
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.atZone(zone);
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return startofDay;
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}
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ZonedDateTime getStartOfDayShorthand(LocalDate localDate, ZoneId zone) {
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ZonedDateTime startofDay = localDate.atStartOfDay(zone);
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return startofDay;
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}
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ZonedDateTime getStartOfDayFromZonedDateTime(ZonedDateTime zonedDateTime) {
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ZonedDateTime startofDay = zonedDateTime.toLocalDateTime()
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.toLocalDate()
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.atStartOfDay(zonedDateTime.getZone());
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return startofDay;
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}
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ZonedDateTime getStartOfDayAtMinTime(ZonedDateTime zonedDateTime) {
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ZonedDateTime startofDay = zonedDateTime.with(ChronoField.HOUR_OF_DAY, 0);
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return startofDay;
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}
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ZonedDateTime getStartOfDayAtMidnightTime(ZonedDateTime zonedDateTime) {
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ZonedDateTime startofDay = zonedDateTime.with(ChronoField.NANO_OF_DAY, 0);
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return startofDay;
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}
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}
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@@ -1,22 +0,0 @@
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package com.baeldung.temporaladjuster;
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import java.time.DayOfWeek;
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import java.time.temporal.ChronoField;
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import java.time.temporal.ChronoUnit;
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import java.time.temporal.Temporal;
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import java.time.temporal.TemporalAdjuster;
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public class CustomTemporalAdjuster implements TemporalAdjuster {
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@Override
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public Temporal adjustInto(Temporal temporal) {
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switch (DayOfWeek.of(temporal.get(ChronoField.DAY_OF_WEEK))) {
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case FRIDAY:
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return temporal.plus(3, ChronoUnit.DAYS);
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case SATURDAY:
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return temporal.plus(2, ChronoUnit.DAYS);
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default:
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return temporal.plus(1, ChronoUnit.DAYS);
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}
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}
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}
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@@ -1,19 +0,0 @@
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package com.baeldung.dateapi;
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import java.time.Instant;
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import java.time.ZoneId;
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import java.time.ZonedDateTime;
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import java.util.Date;
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import java.util.GregorianCalendar;
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import java.util.TimeZone;
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public class ConversionExample {
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public static void main(String[] args) {
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Instant instantFromCalendar = GregorianCalendar.getInstance().toInstant();
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ZonedDateTime zonedDateTimeFromCalendar = new GregorianCalendar().toZonedDateTime();
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Date dateFromInstant = Date.from(Instant.now());
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GregorianCalendar calendarFromZonedDateTime = GregorianCalendar.from(ZonedDateTime.now());
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Instant instantFromDate = new Date().toInstant();
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ZoneId zoneIdFromTimeZone = TimeZone.getTimeZone("PST").toZoneId();
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}
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}
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@@ -1,42 +0,0 @@
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package com.baeldung.dateapi;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import java.time.Duration;
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import java.time.Instant;
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import java.time.temporal.ChronoUnit;
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import org.junit.Test;
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public class JavaDurationUnitTest {
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@Test
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public void test2() {
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Instant start = Instant.parse("2017-10-03T10:15:30.00Z");
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Instant end = Instant.parse("2017-10-03T10:16:30.00Z");
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Duration duration = Duration.between(start, end);
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assertFalse(duration.isNegative());
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assertEquals(60, duration.getSeconds());
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assertEquals(1, duration.toMinutes());
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Duration fromDays = Duration.ofDays(1);
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assertEquals(86400, fromDays.getSeconds());
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Duration fromMinutes = Duration.ofMinutes(60);
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assertEquals(1, fromMinutes.toHours());
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assertEquals(120, duration.plusSeconds(60).getSeconds());
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assertEquals(30, duration.minusSeconds(30).getSeconds());
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assertEquals(120, duration.plus(60, ChronoUnit.SECONDS).getSeconds());
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assertEquals(30, duration.minus(30, ChronoUnit.SECONDS).getSeconds());
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Duration fromChar1 = Duration.parse("P1DT1H10M10.5S");
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Duration fromChar2 = Duration.parse("PT10M");
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}
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}
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@@ -1,44 +0,0 @@
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package com.baeldung.dateapi;
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import org.apache.log4j.Logger;
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import org.junit.Test;
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import java.time.LocalDate;
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import java.time.Period;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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public class JavaPeriodUnitTest {
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private static final Logger LOG = Logger.getLogger(JavaPeriodUnitTest.class);
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@Test
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public void whenTestPeriod_thenOk() {
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LocalDate startDate = LocalDate.of(2015, 2, 15);
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LocalDate endDate = LocalDate.of(2017, 1, 21);
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Period period = Period.between(startDate, endDate);
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LOG.info(String.format("Years:%d months:%d days:%d", period.getYears(), period.getMonths(), period.getDays()));
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assertFalse(period.isNegative());
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assertEquals(56, period.plusDays(50).getDays());
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assertEquals(9, period.minusMonths(2).getMonths());
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Period fromUnits = Period.of(3, 10, 10);
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Period fromDays = Period.ofDays(50);
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Period fromMonths = Period.ofMonths(5);
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Period fromYears = Period.ofYears(10);
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Period fromWeeks = Period.ofWeeks(40);
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assertEquals(280, fromWeeks.getDays());
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Period fromCharYears = Period.parse("P2Y");
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assertEquals(2, fromCharYears.getYears());
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Period fromCharUnits = Period.parse("P2Y3M5D");
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assertEquals(5, fromCharUnits.getDays());
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}
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}
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@@ -1,89 +0,0 @@
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package com.baeldung.dateapi;
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import org.junit.Test;
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import java.text.ParseException;
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import java.time.Duration;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.LocalTime;
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import java.time.Month;
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import java.time.YearMonth;
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import java.time.format.DateTimeFormatter;
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import java.time.temporal.ChronoUnit;
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import static org.assertj.core.api.Assertions.assertThat;
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public class JavaUtilTimeUnitTest {
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@Test
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public void currentTime() {
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final LocalDate now = LocalDate.now();
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System.out.println(now);
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// there is not much to test here
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}
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@Test
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public void specificTime() {
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LocalDate birthDay = LocalDate.of(1990, Month.DECEMBER, 15);
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System.out.println(birthDay);
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// there is not much to test here
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}
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@Test
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public void extractMonth() {
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Month month = LocalDate.of(1990, Month.DECEMBER, 15).getMonth();
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assertThat(month).isEqualTo(Month.DECEMBER);
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}
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@Test
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public void subtractTime() {
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LocalDateTime fiveHoursBefore = LocalDateTime.of(1990, Month.DECEMBER, 15, 15, 0).minusHours(5);
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assertThat(fiveHoursBefore.getHour()).isEqualTo(10);
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}
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@Test
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public void alterField() {
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LocalDateTime inJune = LocalDateTime.of(1990, Month.DECEMBER, 15, 15, 0).with(Month.JUNE);
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assertThat(inJune.getMonth()).isEqualTo(Month.JUNE);
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}
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||||
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||||
@Test
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||||
public void truncate() {
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LocalTime truncated = LocalTime.of(15, 12, 34).truncatedTo(ChronoUnit.HOURS);
|
||||
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assertThat(truncated).isEqualTo(LocalTime.of(15, 0, 0));
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}
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||||
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||||
@Test
|
||||
public void getTimeSpan() {
|
||||
LocalDateTime now = LocalDateTime.now();
|
||||
LocalDateTime hourLater = now.plusHours(1);
|
||||
Duration span = Duration.between(now, hourLater);
|
||||
|
||||
assertThat(span).isEqualTo(Duration.ofHours(1));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void formatAndParse() throws ParseException {
|
||||
LocalDate someDate = LocalDate.of(2016, 12, 7);
|
||||
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
|
||||
String formattedDate = someDate.format(formatter);
|
||||
LocalDate parsedDate = LocalDate.parse(formattedDate, formatter);
|
||||
|
||||
assertThat(formattedDate).isEqualTo("2016-12-07");
|
||||
assertThat(parsedDate).isEqualTo(someDate);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void daysInMonth() {
|
||||
int daysInMonth = YearMonth.of(1990, 2).lengthOfMonth();
|
||||
|
||||
assertThat(daysInMonth).isEqualTo(28);
|
||||
}
|
||||
}
|
||||
@@ -1,116 +0,0 @@
|
||||
package com.baeldung.datetime;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
|
||||
import java.time.Instant;
|
||||
import java.time.LocalDateTime;
|
||||
import java.time.Month;
|
||||
import java.time.ZoneId;
|
||||
import java.time.ZonedDateTime;
|
||||
import java.util.Calendar;
|
||||
import java.util.Date;
|
||||
import java.util.GregorianCalendar;
|
||||
|
||||
import org.junit.Test;
|
||||
|
||||
public class AddHoursToDateUnitTest {
|
||||
|
||||
private final AddHoursToDate addHoursToDateObj = new AddHoursToDate();
|
||||
|
||||
@Test
|
||||
public void givenJavaUtilDate_whenPositiveHours_thenAddHours() {
|
||||
Date actualDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 5, 0).getTime();
|
||||
Date expectedDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 7, 0).getTime();
|
||||
|
||||
assertThat(addHoursToDateObj.addHoursToJavaUtilDate(actualDate, 2)).isEqualTo(expectedDate);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenJavaUtilDate_whenNegativeHours_thenMinusHours() {
|
||||
Date actualDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 5, 0).getTime();
|
||||
Date expectedDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 3, 0).getTime();
|
||||
|
||||
assertThat(addHoursToDateObj.addHoursToJavaUtilDate(actualDate, -2)).isEqualTo(expectedDate);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenJavaUtilDate_whenUsingToInstantAndPostiveHours_thenAddHours() {
|
||||
Date actualDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 5, 0).getTime();
|
||||
Date expectedDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 7, 0).getTime();
|
||||
|
||||
assertThat(addHoursToDateObj.addHoursToDateUsingInstant(actualDate, 2)).isEqualTo(expectedDate);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenJavaUtilDate_whenUsingToInstantAndNegativeHours_thenAddHours() {
|
||||
Date actualDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 5, 0).getTime();
|
||||
Date expectedDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 3, 0).getTime();
|
||||
|
||||
assertThat(addHoursToDateObj.addHoursToDateUsingInstant(actualDate, -2)).isEqualTo(expectedDate);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenLocalDateTime_whenUsingAddHoursToLocalDateTime_thenAddHours() {
|
||||
LocalDateTime actualDateTime = LocalDateTime.of(2018, Month.JUNE, 25, 5, 0);
|
||||
LocalDateTime expectedDateTime = LocalDateTime.of(2018, Month.JUNE, 25, 7, 0);
|
||||
|
||||
assertThat(addHoursToDateObj.addHoursToLocalDateTime(actualDateTime, 2)).isEqualTo(expectedDateTime);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenLocalDateTime_whenUsingMinusHoursToLocalDateTime_thenMinusHours() {
|
||||
LocalDateTime actualDateTime = LocalDateTime.of(2018, Month.JUNE, 25, 5, 0);
|
||||
LocalDateTime expectedDateTime = LocalDateTime.of(2018, Month.JUNE, 25, 3, 0);
|
||||
|
||||
assertThat(addHoursToDateObj.subtractHoursToLocalDateTime(actualDateTime, 2)).isEqualTo(expectedDateTime);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenZonedDateTime_whenUsingAddHoursToZonedDateTime_thenAddHours() {
|
||||
ZonedDateTime actualZonedDateTime = ZonedDateTime.of(LocalDateTime.of(2018, Month.JUNE, 25, 5, 0), ZoneId.systemDefault());
|
||||
ZonedDateTime expectedZonedDateTime = ZonedDateTime.of(LocalDateTime.of(2018, Month.JUNE, 25, 7, 0), ZoneId.systemDefault());
|
||||
|
||||
assertThat(addHoursToDateObj.addHoursToZonedDateTime(actualZonedDateTime, 2)).isEqualTo(expectedZonedDateTime);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenZonedDateTime_whenUsingMinusHoursToZonedDateTime_thenMinusHours() {
|
||||
ZonedDateTime actualZonedDateTime = ZonedDateTime.of(LocalDateTime.of(2018, Month.JUNE, 25, 5, 0), ZoneId.systemDefault());
|
||||
ZonedDateTime expectedZonedDateTime = ZonedDateTime.of(LocalDateTime.of(2018, Month.JUNE, 25, 3, 0), ZoneId.systemDefault());
|
||||
|
||||
assertThat(addHoursToDateObj.subtractHoursToZonedDateTime(actualZonedDateTime, 2)).isEqualTo(expectedZonedDateTime);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenJavaUtilDate_whenUsingPositiveHrsAndAddHoursWithApacheCommons_thenAddHours() {
|
||||
Date actualDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 5, 0).getTime();
|
||||
Date expectedDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 7, 0).getTime();
|
||||
|
||||
assertThat(addHoursToDateObj.addHoursWithApacheCommons(actualDate, 2)).isEqualTo(expectedDate);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenJavaUtilDate_whenUsingNegativeHrsAndAddHoursWithApacheCommons_thenMinusHours() {
|
||||
Date actualDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 7, 0).getTime();
|
||||
Date expectedDate = new GregorianCalendar(2018, Calendar.JUNE, 25, 5, 0).getTime();
|
||||
|
||||
assertThat(addHoursToDateObj.addHoursWithApacheCommons(actualDate, -2)).isEqualTo(expectedDate);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenInstant_whenUsingAddHoursToInstant_thenAddHours() {
|
||||
Instant actualValue = Instant.parse("2018-06-25T05:12:35Z");
|
||||
Instant expectedValue = Instant.parse("2018-06-25T07:12:35Z");
|
||||
|
||||
assertThat(addHoursToDateObj.addHoursToInstant(actualValue, 2)).isEqualTo(expectedValue);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenInstant_whenUsingSubtractHoursToInstant_thenMinusHours() {
|
||||
Instant actualValue = Instant.parse("2018-06-25T07:12:35Z");
|
||||
Instant expectedValue = Instant.parse("2018-06-25T05:12:35Z");
|
||||
|
||||
assertThat(addHoursToDateObj.subtractHoursToInstant(actualValue, 2)).isEqualTo(expectedValue);
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,36 +0,0 @@
|
||||
package com.baeldung.datetime;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
import static org.junit.Assert.assertEquals;
|
||||
|
||||
import java.time.LocalDate;
|
||||
import java.time.LocalDateTime;
|
||||
import java.time.LocalTime;
|
||||
import java.time.Month;
|
||||
|
||||
import org.junit.Test;
|
||||
|
||||
public class UseLocalDateTimeUnitTest {
|
||||
|
||||
UseLocalDateTime useLocalDateTime = new UseLocalDateTime();
|
||||
|
||||
@Test
|
||||
public void givenString_whenUsingParse_thenLocalDateTime() {
|
||||
assertEquals(LocalDate.of(2016, Month.MAY, 10), useLocalDateTime.getLocalDateTimeUsingParseMethod("2016-05-10T06:30")
|
||||
.toLocalDate());
|
||||
assertEquals(LocalTime.of(6, 30), useLocalDateTime.getLocalDateTimeUsingParseMethod("2016-05-10T06:30")
|
||||
.toLocalTime());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenLocalDateTime_whenSettingEndOfDay_thenReturnLastMomentOfDay() {
|
||||
LocalDateTime givenTimed = LocalDateTime.parse("2018-06-23T05:55:55");
|
||||
|
||||
LocalDateTime endOfDayFromGivenDirectly = useLocalDateTime.getEndOfDayFromLocalDateTimeDirectly(givenTimed);
|
||||
LocalDateTime endOfDayFromGiven = useLocalDateTime.getEndOfDayFromLocalDateTime(givenTimed);
|
||||
|
||||
assertThat(endOfDayFromGivenDirectly).isEqualTo(endOfDayFromGiven);
|
||||
assertThat(endOfDayFromGivenDirectly.toLocalTime()).isEqualTo(LocalTime.MAX);
|
||||
assertThat(endOfDayFromGivenDirectly.toString()).isEqualTo("2018-06-23T23:59:59.999999999");
|
||||
}
|
||||
}
|
||||
@@ -1,91 +0,0 @@
|
||||
package com.baeldung.datetime;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
import static org.junit.Assert.assertEquals;
|
||||
|
||||
import java.time.DayOfWeek;
|
||||
import java.time.LocalDate;
|
||||
import java.time.LocalDateTime;
|
||||
import java.time.LocalTime;
|
||||
|
||||
import org.junit.Test;
|
||||
|
||||
public class UseLocalDateUnitTest {
|
||||
|
||||
UseLocalDate useLocalDate = new UseLocalDate();
|
||||
|
||||
@Test
|
||||
public void givenValues_whenUsingFactoryOf_thenLocalDate() {
|
||||
assertEquals("2016-05-10", useLocalDate.getLocalDateUsingFactoryOfMethod(2016, 5, 10)
|
||||
.toString());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenString_whenUsingParse_thenLocalDate() {
|
||||
assertEquals("2016-05-10", useLocalDate.getLocalDateUsingParseMethod("2016-05-10")
|
||||
.toString());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void whenUsingClock_thenLocalDate() {
|
||||
assertEquals(LocalDate.now(), useLocalDate.getLocalDateFromClock());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenDate_whenUsingPlus_thenNextDay() {
|
||||
assertEquals(LocalDate.now()
|
||||
.plusDays(1), useLocalDate.getNextDay(LocalDate.now()));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenDate_whenUsingMinus_thenPreviousDay() {
|
||||
assertEquals(LocalDate.now()
|
||||
.minusDays(1), useLocalDate.getPreviousDay(LocalDate.now()));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenToday_whenUsingGetDayOfWeek_thenDayOfWeek() {
|
||||
assertEquals(DayOfWeek.SUNDAY, useLocalDate.getDayOfWeek(LocalDate.parse("2016-05-22")));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenToday_whenUsingWithTemporalAdjuster_thenFirstDayOfMonth() {
|
||||
assertEquals(1, useLocalDate.getFirstDayOfMonth()
|
||||
.getDayOfMonth());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenLocalDate_whenUsingAtStartOfDay_thenReturnMidnight() {
|
||||
assertEquals(LocalDateTime.parse("2016-05-22T00:00:00"), useLocalDate.getStartOfDay(LocalDate.parse("2016-05-22")));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenLocalDate_whenSettingStartOfDay_thenReturnMidnightInAllCases() {
|
||||
LocalDate given = LocalDate.parse("2018-06-23");
|
||||
|
||||
LocalDateTime startOfDayWithMethod = useLocalDate.getStartOfDay(given);
|
||||
LocalDateTime startOfDayOfLocalDate = useLocalDate.getStartOfDayOfLocalDate(given);
|
||||
LocalDateTime startOfDayWithMin = useLocalDate.getStartOfDayAtMinTime(given);
|
||||
LocalDateTime startOfDayWithMidnight = useLocalDate.getStartOfDayAtMidnightTime(given);
|
||||
|
||||
assertThat(startOfDayWithMethod).isEqualTo(startOfDayWithMin)
|
||||
.isEqualTo(startOfDayWithMidnight)
|
||||
.isEqualTo(startOfDayOfLocalDate)
|
||||
.isEqualTo(LocalDateTime.parse("2018-06-23T00:00:00"));
|
||||
assertThat(startOfDayWithMin.toLocalTime()).isEqualTo(LocalTime.MIDNIGHT);
|
||||
assertThat(startOfDayWithMin.toString()).isEqualTo("2018-06-23T00:00");
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenLocalDate_whenSettingEndOfDay_thenReturnLastMomentOfDay() {
|
||||
LocalDate given = LocalDate.parse("2018-06-23");
|
||||
|
||||
LocalDateTime endOfDayWithMax = useLocalDate.getEndOfDay(given);
|
||||
LocalDateTime endOfDayFromLocalTime = useLocalDate.getEndOfDayFromLocalTime(given);
|
||||
|
||||
assertThat(endOfDayWithMax).isEqualTo(endOfDayFromLocalTime);
|
||||
assertThat(endOfDayWithMax.toLocalTime()).isEqualTo(LocalTime.MAX);
|
||||
assertThat(endOfDayWithMax.toString()).isEqualTo("2018-06-23T23:59:59.999999999");
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,36 +0,0 @@
|
||||
package com.baeldung.datetime;
|
||||
|
||||
import java.time.LocalTime;
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
public class UseLocalTimeUnitTest {
|
||||
|
||||
UseLocalTime useLocalTime = new UseLocalTime();
|
||||
|
||||
@Test
|
||||
public void givenValues_whenUsingFactoryOf_thenLocalTime() {
|
||||
Assert.assertEquals("07:07:07", useLocalTime.getLocalTimeUsingFactoryOfMethod(7, 7, 7).toString());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenString_whenUsingParse_thenLocalTime() {
|
||||
Assert.assertEquals("06:30", useLocalTime.getLocalTimeUsingParseMethod("06:30").toString());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenTime_whenAddHour_thenLocalTime() {
|
||||
Assert.assertEquals("07:30", useLocalTime.addAnHour(LocalTime.of(6, 30)).toString());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void getHourFromLocalTime() {
|
||||
Assert.assertEquals(1, useLocalTime.getHourFromLocalTime(LocalTime.of(1, 1)));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void getLocalTimeWithMinuteSetToValue() {
|
||||
Assert.assertEquals(LocalTime.of(10, 20), useLocalTime.getLocalTimeWithMinuteSetToValue(LocalTime.of(10, 10), 20));
|
||||
}
|
||||
}
|
||||
@@ -1,26 +0,0 @@
|
||||
package com.baeldung.datetime;
|
||||
|
||||
import java.time.LocalDate;
|
||||
import java.time.Period;
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
public class UsePeriodUnitTest {
|
||||
UsePeriod usingPeriod = new UsePeriod();
|
||||
|
||||
@Test
|
||||
public void givenPeriodAndLocalDate_thenCalculateModifiedDate() {
|
||||
Period period = Period.ofDays(1);
|
||||
LocalDate localDate = LocalDate.parse("2007-05-10");
|
||||
Assert.assertEquals(localDate.plusDays(1), usingPeriod.modifyDates(localDate, period));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenDates_thenGetPeriod() {
|
||||
LocalDate localDate1 = LocalDate.parse("2007-05-10");
|
||||
LocalDate localDate2 = LocalDate.parse("2007-05-15");
|
||||
|
||||
Assert.assertEquals(Period.ofDays(5), usingPeriod.getDifferenceBetweenDates(localDate1, localDate2));
|
||||
}
|
||||
}
|
||||
@@ -1,72 +0,0 @@
|
||||
package com.baeldung.datetime;
|
||||
|
||||
import java.text.SimpleDateFormat;
|
||||
import java.time.Instant;
|
||||
import java.time.ZoneId;
|
||||
import java.time.ZonedDateTime;
|
||||
import java.time.format.DateTimeFormatter;
|
||||
import java.util.Calendar;
|
||||
import java.util.Date;
|
||||
import java.util.TimeZone;
|
||||
|
||||
import org.joda.time.DateTime;
|
||||
import org.joda.time.DateTimeZone;
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
public class UseTimeZoneUnitTest {
|
||||
|
||||
/* https://en.wikipedia.org/wiki/List_of_tz_database_time_zones */
|
||||
|
||||
String timeZone = "Asia/Singapore";
|
||||
|
||||
private static final String PATTERN = "E yyyy-MM-dd HH:mm:ss a";
|
||||
|
||||
@Test
|
||||
public void givenDateWithoutTimeZone_WhenSetTimeZoneUsingJava7_ThenTimeZoneIsSetSuccessfully() {
|
||||
Date nowUtc = new Date();
|
||||
TimeZone asiaSingapore = TimeZone.getTimeZone(timeZone);
|
||||
|
||||
Calendar nowAsiaSingapore = Calendar.getInstance(asiaSingapore);
|
||||
nowAsiaSingapore.setTime(nowUtc);
|
||||
|
||||
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(PATTERN);
|
||||
simpleDateFormat.setTimeZone(TimeZone.getTimeZone(timeZone));
|
||||
|
||||
System.out.println(String.format("Java7: Time now in '%s' is '%s'", nowAsiaSingapore.getTimeZone()
|
||||
.getID(), simpleDateFormat.format(nowAsiaSingapore.getTime())));
|
||||
|
||||
Assert.assertEquals(nowUtc.toInstant().getEpochSecond(), nowAsiaSingapore.toInstant().getEpochSecond());
|
||||
Assert.assertEquals(asiaSingapore, nowAsiaSingapore.getTimeZone());
|
||||
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenDateWithoutTimeZone_WhenSetTimeZoneUsingJava8_ThenTimeZoneIsSetSuccessfully() {
|
||||
Instant nowUtc = Instant.now();
|
||||
ZoneId asiaSingapore = ZoneId.of(timeZone);
|
||||
|
||||
ZonedDateTime nowAsiaSingapore = ZonedDateTime.ofInstant(nowUtc, asiaSingapore);
|
||||
|
||||
System.out.println(String.format("Java8: Time now in '%s' is '%s'", nowAsiaSingapore.getZone(),
|
||||
nowAsiaSingapore.format(DateTimeFormatter.ofPattern(PATTERN))));
|
||||
|
||||
Assert.assertEquals(nowUtc.getEpochSecond(), nowAsiaSingapore.toEpochSecond());
|
||||
Assert.assertEquals(asiaSingapore, nowAsiaSingapore.getZone());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenDateWithoutTimeZone_WhenSetTimeZoneUsingJodaTime_ThenTimeZoneIsSetSuccessfully() {
|
||||
org.joda.time.Instant nowUtc = org.joda.time.Instant.now();
|
||||
DateTimeZone asiaSingapore = DateTimeZone.forID(timeZone);
|
||||
|
||||
DateTime nowAsiaSingapore = nowUtc.toDateTime(asiaSingapore);
|
||||
|
||||
System.out.println(String.format("Joda-time: Time now in '%s' is '%s'", nowAsiaSingapore.getZone(),
|
||||
nowAsiaSingapore.toString(PATTERN)));
|
||||
|
||||
Assert.assertEquals(nowUtc.toInstant().getMillis(), nowAsiaSingapore.toInstant().getMillis());
|
||||
Assert.assertEquals(asiaSingapore, nowAsiaSingapore.getZone());
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,45 +0,0 @@
|
||||
package com.baeldung.datetime;
|
||||
|
||||
import static org.assertj.core.api.Assertions.assertThat;
|
||||
|
||||
import java.time.LocalDate;
|
||||
import java.time.LocalDateTime;
|
||||
import java.time.LocalTime;
|
||||
import java.time.ZoneId;
|
||||
import java.time.ZonedDateTime;
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
public class UseZonedDateTimeUnitTest {
|
||||
|
||||
UseZonedDateTime zonedDateTime = new UseZonedDateTime();
|
||||
|
||||
@Test
|
||||
public void givenZoneId_thenZonedDateTime() {
|
||||
ZoneId zoneId = ZoneId.of("Europe/Paris");
|
||||
ZonedDateTime zonedDatetime = zonedDateTime.getZonedDateTime(LocalDateTime.parse("2016-05-20T06:30"), zoneId);
|
||||
Assert.assertEquals(zoneId, ZoneId.from(zonedDatetime));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void givenLocalDateOrZoned_whenSettingStartOfDay_thenReturnMidnightInAllCases() {
|
||||
LocalDate given = LocalDate.parse("2018-06-23");
|
||||
ZoneId zone = ZoneId.of("Europe/Paris");
|
||||
ZonedDateTime zonedGiven = ZonedDateTime.of(given, LocalTime.NOON, zone);
|
||||
|
||||
ZonedDateTime startOfOfDayWithMethod = zonedDateTime.getStartOfDay(given, zone);
|
||||
ZonedDateTime startOfOfDayWithShorthandMethod = zonedDateTime.getStartOfDayShorthand(given, zone);
|
||||
ZonedDateTime startOfOfDayFromZonedDateTime = zonedDateTime.getStartOfDayFromZonedDateTime(zonedGiven);
|
||||
ZonedDateTime startOfOfDayAtMinTime = zonedDateTime.getStartOfDayAtMinTime(zonedGiven);
|
||||
ZonedDateTime startOfOfDayAtMidnightTime = zonedDateTime.getStartOfDayAtMidnightTime(zonedGiven);
|
||||
|
||||
assertThat(startOfOfDayWithMethod).isEqualTo(startOfOfDayWithShorthandMethod)
|
||||
.isEqualTo(startOfOfDayFromZonedDateTime)
|
||||
.isEqualTo(startOfOfDayAtMinTime)
|
||||
.isEqualTo(startOfOfDayAtMidnightTime);
|
||||
assertThat(startOfOfDayWithMethod.toLocalTime()).isEqualTo(LocalTime.MIDNIGHT);
|
||||
assertThat(startOfOfDayWithMethod.toLocalTime()
|
||||
.toString()).isEqualTo("00:00");
|
||||
}
|
||||
}
|
||||
@@ -1,43 +0,0 @@
|
||||
package com.baeldung.temporaladjusters;
|
||||
|
||||
import com.baeldung.temporaladjuster.CustomTemporalAdjuster;
|
||||
import org.junit.Test;
|
||||
|
||||
import java.time.LocalDate;
|
||||
import java.time.Period;
|
||||
import java.time.temporal.TemporalAdjuster;
|
||||
|
||||
import static org.junit.Assert.assertEquals;
|
||||
|
||||
public class CustomTemporalAdjusterUnitTest {
|
||||
|
||||
private static final TemporalAdjuster NEXT_WORKING_DAY = new CustomTemporalAdjuster();
|
||||
|
||||
@Test
|
||||
public void whenAdjustAndImplementInterface_thenNextWorkingDay() {
|
||||
LocalDate localDate = LocalDate.of(2017, 07, 8);
|
||||
CustomTemporalAdjuster temporalAdjuster = new CustomTemporalAdjuster();
|
||||
LocalDate nextWorkingDay = localDate.with(temporalAdjuster);
|
||||
|
||||
assertEquals("2017-07-10", nextWorkingDay.toString());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void whenAdjust_thenNextWorkingDay() {
|
||||
LocalDate localDate = LocalDate.of(2017, 07, 8);
|
||||
LocalDate date = localDate.with(NEXT_WORKING_DAY);
|
||||
|
||||
assertEquals("2017-07-10", date.toString());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void whenAdjust_thenFourteenDaysAfterDate() {
|
||||
LocalDate localDate = LocalDate.of(2017, 07, 8);
|
||||
TemporalAdjuster temporalAdjuster = (t) -> t.plus(Period.ofDays(14));
|
||||
LocalDate result = localDate.with(temporalAdjuster);
|
||||
|
||||
String fourteenDaysAfterDate = "2017-07-22";
|
||||
|
||||
assertEquals(fourteenDaysAfterDate, result.toString());
|
||||
}
|
||||
}
|
||||
@@ -1,22 +0,0 @@
|
||||
package com.baeldung.temporaladjusters;
|
||||
|
||||
import java.time.DayOfWeek;
|
||||
import java.time.LocalDate;
|
||||
import java.time.temporal.TemporalAdjusters;
|
||||
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
public class TemporalAdjustersUnitTest {
|
||||
|
||||
@Test
|
||||
public void whenAdjust_thenNextSunday() {
|
||||
LocalDate localDate = LocalDate.of(2017, 07, 8);
|
||||
LocalDate nextSunday = localDate.with(TemporalAdjusters.next(DayOfWeek.SUNDAY));
|
||||
|
||||
String expected = "2017-07-09";
|
||||
|
||||
Assert.assertEquals(expected, nextSunday.toString());
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user