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[BAEL-3291] Move missing code snippets for the String Numeric article

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Also: format the java-strings-ops project with required eclipse profile
This commit is contained in:
Martin van Wingerden
2019-10-23 21:32:49 +02:00
parent bcf119bf1a
commit 81c6758d01
31 changed files with 242 additions and 239 deletions
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7
java-strings-ops/src/main/java/com/baeldung/string/AppendCharAtPositionX.java
View File

@@ -8,7 +8,7 @@ package com.baeldung.string;
*
*/
public class AppendCharAtPositionX {
public String addCharUsingCharArray(String str, char ch, int position) {
validate(str, position);
int len = str.length();
@@ -30,15 +30,14 @@ public class AppendCharAtPositionX {
sb.insert(position, ch);
return sb.toString();
}
private void validate(String str, int position) {
if (str == null) {
throw new IllegalArgumentException("Str should not be null");
}
int len = str.length();
if (position < 0 || position > len) {
throw new IllegalArgumentException("position[" + position + "] should be "
+ "in the range 0.." + len + " for string " + str);
throw new IllegalArgumentException("position[" + position + "] should be " + "in the range 0.." + len + " for string " + str);
}
}

9
java-strings-ops/src/main/java/com/baeldung/string/StringHelper.java
View File

@@ -12,10 +12,15 @@ class StringHelper {
}
static String removeLastCharOptional(String s) {
return Optional.ofNullable(s).filter(str -> str.length() != 0).map(str -> str.substring(0, str.length() - 1)).orElse(s);
return Optional.ofNullable(s)
.filter(str -> str.length() != 0)
.map(str -> str.substring(0, str.length() - 1))
.orElse(s);
}
static String removeLastCharRegexOptional(String s) {
return Optional.ofNullable(s).map(str -> str.replaceAll(".$", "")).orElse(s);
return Optional.ofNullable(s)
.map(str -> str.replaceAll(".$", ""))
.orElse(s);
}
}

36
java-strings/src/main/java/com/baeldung/stringisnumeric/Benchmarking.java → java-strings-ops/src/main/java/com/baeldung/string/isnumeric/Benchmarking.java
View File

@@ -1,4 +1,4 @@
package com.baeldung.stringisnumeric;
package com.baeldung.string.isnumeric;
import java.util.concurrent.TimeUnit;
@@ -13,13 +13,11 @@ import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;
public class Benchmarking {
public static void main(String[] args) throws RunnerException {
Options opt = new OptionsBuilder()
.include(Benchmarking.class.getSimpleName())
.forks(1)
.build();
Options opt = new OptionsBuilder().include(Benchmarking.class.getSimpleName())
.forks(1)
.build();
new Runner(opt).run();
}
@@ -28,45 +26,45 @@ public class Benchmarking {
public static class ExecutionPlan {
public String number = Integer.toString(Integer.MAX_VALUE);
public boolean isNumber = false;
public IsNumeric isNumeric= new IsNumeric();
public IsNumeric isNumeric = new IsNumeric();
}
@Benchmark
@Benchmark
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public void usingCoreJava(ExecutionPlan plan) {
plan.isNumber = plan.isNumeric.usingCoreJava(plan.number);
}
@Benchmark
@Benchmark
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public void usingRegularExpressions(ExecutionPlan plan) {
plan.isNumber = plan.isNumeric.usingRegularExpressions(plan.number);
}
@Benchmark
@Benchmark
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public void usingNumberUtils_isCreatable(ExecutionPlan plan) {
plan.isNumber = plan.isNumeric.usingNumberUtils_isCreatable(plan.number);
}
@Benchmark
@Benchmark
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public void usingNumberUtils_isParsable(ExecutionPlan plan) {
plan.isNumber = plan.isNumeric.usingNumberUtils_isParsable(plan.number);
}
@Benchmark
@Benchmark
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public void usingStringUtils_isNumeric(ExecutionPlan plan) {
plan.isNumber = plan.isNumeric.usingStringUtils_isNumeric(plan.number);
}
@Benchmark
@Benchmark
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public void usingStringUtils_isNumericSpace(ExecutionPlan plan) {

5
java-strings/src/main/java/com/baeldung/string/checkinputs/CheckIntegerInput.java → java-strings-ops/src/main/java/com/baeldung/string/isnumeric/CheckIntegerInput.java
View File

@@ -1,14 +1,13 @@
package com.baeldung.string.checkinputs;
package com.baeldung.string.isnumeric;
import java.util.Scanner;
public class CheckIntegerInput {
public static void main(String[] args) {
try (Scanner scanner = new Scanner(System.in)) {
System.out.println("Enter an integer : ");
if (scanner.hasNextInt()) {
System.out.println("You entered : " + scanner.nextInt());
} else {

14
java-strings/src/main/java/com/baeldung/stringisnumeric/IsNumeric.java → java-strings-ops/src/main/java/com/baeldung/string/isnumeric/IsNumeric.java
View File

@@ -1,4 +1,4 @@
package com.baeldung.stringisnumeric;
package com.baeldung.string.isnumeric;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.math.NumberUtils;
@@ -6,29 +6,29 @@ import org.apache.commons.lang3.math.NumberUtils;
public class IsNumeric {
public boolean usingCoreJava(String strNum) {
try {
double d = Double.parseDouble(strNum);
Double.parseDouble(strNum);
} catch (NumberFormatException | NullPointerException nfe) {
return false;
}
return true;
}
public boolean usingRegularExpressions(String strNum) {
return strNum.matches("-?\\d+(\\.\\d+)?");
}
public boolean usingNumberUtils_isCreatable(String strNum) {
return NumberUtils.isCreatable(strNum);
}
public boolean usingNumberUtils_isParsable(String strNum) {
return NumberUtils.isParsable(strNum);
}
public boolean usingStringUtils_isNumeric(String strNum) {
return StringUtils.isNumeric(strNum);
}
public boolean usingStringUtils_isNumericSpace(String strNum) {
return StringUtils.isNumericSpace(strNum);
}

31
java-strings/src/main/java/com/baeldung/stringisnumeric/IsNumericDriver.java → java-strings-ops/src/main/java/com/baeldung/string/isnumeric/IsNumericDriver.java
View File

@@ -1,34 +1,31 @@
package com.baeldung.stringisnumeric;
package com.baeldung.string.isnumeric;
import org.apache.log4j.Logger;
public class IsNumericDriver {
private static IsNumeric isNumeric;
private static Logger LOG = Logger.getLogger(IsNumericDriver.class);
static {
isNumeric =new IsNumeric();
}
private static IsNumeric isNumeric = new IsNumeric();
public static void main(String[] args) {
LOG.info("Testing all methods...");
boolean res = isNumeric.usingCoreJava("1001");
LOG.info("Using Core Java : " + res);
res = isNumeric.usingRegularExpressions("1001");
LOG.info("Using Regular Expressions : " + res);
res =isNumeric.usingNumberUtils_isCreatable("1001");
res = isNumeric.usingNumberUtils_isCreatable("1001");
LOG.info("Using NumberUtils.isCreatable : " + res);
res =isNumeric.usingNumberUtils_isParsable("1001");
res = isNumeric.usingNumberUtils_isParsable("1001");
LOG.info("Using NumberUtils.isParsable : " + res);
res =isNumeric.usingStringUtils_isNumeric("1001");
res = isNumeric.usingStringUtils_isNumeric("1001");
LOG.info("Using StringUtils.isNumeric : " + res);
res =isNumeric.usingStringUtils_isNumericSpace("1001");
res = isNumeric.usingStringUtils_isNumericSpace("1001");
LOG.info("Using StringUtils.isNumericSpace : " + res);
}
}

13
java-strings-ops/src/main/java/com/baeldung/string/tostring/Customer.java
View File

@@ -3,17 +3,20 @@ package com.baeldung.string.tostring;
public class Customer {
private String firstName;
private String lastName;
public String getFirstName() {
return firstName;
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
this.firstName = firstName;
}
public String getLastName() {
return lastName;
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
this.lastName = lastName;
}
}

9
java-strings-ops/src/main/java/com/baeldung/string/tostring/CustomerArrayToString.java
View File

@@ -4,16 +4,17 @@ import java.util.Arrays;
public class CustomerArrayToString extends Customer {
private Order[] orders;
public Order[] getOrders() {
return orders;
}
public void setOrders(Order[] orders) {
this.orders = orders;
}
@Override
public String toString() {
return "Customer [orders=" + Arrays.toString(orders) + ", getFirstName()=" + getFirstName()
+ ", getLastName()=" + getLastName() + "]";
}
return "Customer [orders=" + Arrays.toString(orders) + ", getFirstName()=" + getFirstName() + ", getLastName()=" + getLastName() + "]";
}
}

7
java-strings-ops/src/main/java/com/baeldung/string/tostring/CustomerComplexObjectToString.java
View File

@@ -2,7 +2,7 @@ package com.baeldung.string.tostring;
public class CustomerComplexObjectToString extends Customer {
private Order order;
public Order getOrder() {
return order;
}
@@ -13,7 +13,6 @@ public class CustomerComplexObjectToString extends Customer {
@Override
public String toString() {
return "Customer [order=" + order + ", getFirstName()=" + getFirstName()
+ ", getLastName()=" + getLastName() + "]";
}
return "Customer [order=" + order + ", getFirstName()=" + getFirstName() + ", getLastName()=" + getLastName() + "]";
}
}

9
java-strings-ops/src/main/java/com/baeldung/string/tostring/CustomerPrimitiveToString.java
View File

@@ -2,18 +2,17 @@ package com.baeldung.string.tostring;
public class CustomerPrimitiveToString extends Customer {
private long balance;
public long getBalance() {
return balance;
}
public void setBalance(long balance) {
this.balance = balance;
}
@Override
public String toString() {
return "Customer [balance=" + balance + ", getFirstName()=" + getFirstName()
+ ", getLastName()=" + getLastName() + "]";
return "Customer [balance=" + balance + ", getFirstName()=" + getFirstName() + ", getLastName()=" + getLastName() + "]";
}
}

16
java-strings-ops/src/main/java/com/baeldung/string/tostring/CustomerReflectionToString.java
View File

@@ -4,36 +4,36 @@ import java.util.List;
import org.apache.commons.lang3.builder.ReflectionToStringBuilder;
public class CustomerReflectionToString extends Customer{
public class CustomerReflectionToString extends Customer {
private Integer score;
private List<String> orders;
private StringBuffer fullname;
public Integer getScore() {
return score;
}
public void setScore(Integer score) {
this.score = score;
}
public List<String> getOrders() {
return orders;
}
public void setOrders(List<String> orders) {
this.orders = orders;
}
public StringBuffer getFullname() {
return fullname;
}
public void setFullname(StringBuffer fullname) {
this.fullname = fullname;
}
@Override
public String toString() {
return ReflectionToStringBuilder.toString(this);

17
java-strings-ops/src/main/java/com/baeldung/string/tostring/CustomerWrapperCollectionToString.java
View File

@@ -6,34 +6,33 @@ public class CustomerWrapperCollectionToString extends Customer {
private Integer score;
private List<String> orders;
private StringBuffer fullname;
public Integer getScore() {
return score;
}
public void setScore(Integer score) {
this.score = score;
}
public List<String> getOrders() {
return orders;
}
public void setOrders(List<String> orders) {
this.orders = orders;
}
public StringBuffer getFullname() {
return fullname;
}
public void setFullname(StringBuffer fullname) {
this.fullname = fullname;
}
@Override
public String toString() {
return "Customer [score=" + score + ", orders=" + orders + ", fullname=" + fullname
+ ", getFirstName()=" + getFirstName() + ", getLastName()=" + getLastName() + "]";
return "Customer [score=" + score + ", orders=" + orders + ", fullname=" + fullname + ", getFirstName()=" + getFirstName() + ", getLastName()=" + getLastName() + "]";
}
}

5
java-strings-ops/src/main/java/com/baeldung/string/tostring/Order.java
View File

@@ -1,7 +1,7 @@
package com.baeldung.string.tostring;
public class Order {
private String orderId;
private String desc;
private long value;
@@ -38,9 +38,10 @@ public class Order {
public void setStatus(String status) {
this.status = status;
}
@Override
public String toString() {
return "Order [orderId=" + orderId + ", desc=" + desc + ", value=" + value + "]";
return "Order [orderId=" + orderId + ", desc=" + desc + ", value=" + value + "]";
}
}

8
java-strings-ops/src/main/resources/log4j.properties Normal file
View File

@@ -0,0 +1,8 @@
# Root logger option
log4j.rootLogger=DEBUG, stdout
# Redirect log messages to console
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

12
java-strings-ops/src/test/java/com/baeldung/java/countingChars/CountCharsExampleUnitTest.java
View File

@@ -10,7 +10,6 @@ import org.junit.Test;
import com.google.common.base.CharMatcher;
/***
* Example of counting chars in a String.
*/
@@ -78,16 +77,21 @@ public class CountCharsExampleUnitTest {
@Test
public void givenString_whenUsingJava8Features_thenCountChars() {
String someString = "elephant";
long count = someString.chars().filter(ch -> ch == 'e').count();
long count = someString.chars()
.filter(ch -> ch == 'e')
.count();
assertEquals(2, count);
long count2 = someString.codePoints().filter(ch -> ch == 'e').count();
long count2 = someString.codePoints()
.filter(ch -> ch == 'e')
.count();
assertEquals(2, count2);
}
@Test
public void givenString_whenUsingGuavaCharMatcher_thenCountChars() {
int count = CharMatcher.is('e').countIn("elephant");
int count = CharMatcher.is('e')
.countIn("elephant");
assertEquals(2, count);
}

70
java-strings-ops/src/test/java/com/baeldung/string/AppendCharAtPositionXUnitTest.java
View File

@@ -12,99 +12,99 @@ import org.junit.Test;
*
*/
public class AppendCharAtPositionXUnitTest {
private AppendCharAtPositionX appendCharAtPosition = new AppendCharAtPositionX();
private String word = "Titanc";
private char letter = 'i';
@Test
public void whenUsingCharacterArrayAndCharacterAddedAtBeginning_shouldAddCharacter() {
assertEquals("iTitanc", appendCharAtPosition.addCharUsingCharArray(word, letter, 0));
}
@Test
public void whenUsingSubstringAndCharacterAddedAtBeginning_shouldAddCharacter() {
assertEquals("iTitanc", appendCharAtPosition.addCharUsingSubstring(word, letter, 0));
}
}
@Test
public void whenUsingStringBuilderAndCharacterAddedAtBeginning_shouldAddCharacter() {
assertEquals("iTitanc", appendCharAtPosition.addCharUsingStringBuilder(word, letter, 0));
}
@Test
public void whenUsingCharacterArrayAndCharacterAddedAtMiddle_shouldAddCharacter() {
assertEquals("Titianc", appendCharAtPosition.addCharUsingCharArray(word, letter, 3));
}
@Test
public void whenUsingSubstringAndCharacterAddedAtMiddle_shouldAddCharacter() {
assertEquals("Titianc", appendCharAtPosition.addCharUsingSubstring(word, letter, 3));
}
}
@Test
public void whenUsingStringBuilderAndCharacterAddedAtMiddle_shouldAddCharacter() {
assertEquals("Titianc", appendCharAtPosition.addCharUsingStringBuilder(word, letter, 3));
}
@Test
public void whenUsingCharacterArrayAndCharacterAddedAtEnd_shouldAddCharacter() {
assertEquals("Titanci", appendCharAtPosition.addCharUsingCharArray(word, letter, word.length()));
}
@Test
public void whenUsingSubstringAndCharacterAddedAtEnd_shouldAddCharacter() {
assertEquals("Titanci", appendCharAtPosition.addCharUsingSubstring(word, letter, word.length()));
}
}
@Test
public void whenUsingStringBuilderAndCharacterAddedAtEnd_shouldAddCharacter() {
assertEquals("Titanci", appendCharAtPosition.addCharUsingStringBuilder(word, letter, word.length()));
}
@Test(expected=IllegalArgumentException.class)
@Test(expected = IllegalArgumentException.class)
public void whenUsingCharacterArrayAndCharacterAddedAtNegativePosition_shouldThrowException() {
appendCharAtPosition.addCharUsingStringBuilder(word, letter, -1);
}
@Test(expected=IllegalArgumentException.class)
@Test(expected = IllegalArgumentException.class)
public void whenUsingSubstringAndCharacterAddedAtNegativePosition_shouldThrowException() {
appendCharAtPosition.addCharUsingStringBuilder(word, letter, -1);
}
@Test(expected=IllegalArgumentException.class)
}
@Test(expected = IllegalArgumentException.class)
public void whenUsingStringBuilderAndCharacterAddedAtNegativePosition_shouldThrowException() {
appendCharAtPosition.addCharUsingStringBuilder(word, letter, -1);
}
@Test(expected=IllegalArgumentException.class)
@Test(expected = IllegalArgumentException.class)
public void whenUsingCharacterArrayAndCharacterAddedAtInvalidPosition_shouldThrowException() {
appendCharAtPosition.addCharUsingStringBuilder(word, letter, word.length() + 2);
}
@Test(expected=IllegalArgumentException.class)
@Test(expected = IllegalArgumentException.class)
public void whenUsingSubstringAndCharacterAddedAtInvalidPosition_shouldThrowException() {
appendCharAtPosition.addCharUsingStringBuilder(word, letter, word.length() + 2);
}
@Test(expected=IllegalArgumentException.class)
}
@Test(expected = IllegalArgumentException.class)
public void whenUsingStringBuilderAndCharacterAddedAtInvalidPosition_shouldThrowException() {
appendCharAtPosition.addCharUsingStringBuilder(word, letter, word.length() + 2);
}
@Test(expected=IllegalArgumentException.class)
@Test(expected = IllegalArgumentException.class)
public void whenUsingCharacterArrayAndCharacterAddedAtPositionXAndStringIsNull_shouldThrowException() {
appendCharAtPosition.addCharUsingStringBuilder(null, letter, 3);
}
@Test(expected=IllegalArgumentException.class)
@Test(expected = IllegalArgumentException.class)
public void whenUsingSubstringAndCharacterAddedAtPositionXAndStringIsNull_shouldThrowException() {
appendCharAtPosition.addCharUsingStringBuilder(null, letter, 3);
}
@Test(expected=IllegalArgumentException.class)
}
@Test(expected = IllegalArgumentException.class)
public void whenUsingStringBuilderAndCharacterAddedAtPositionXAndStringIsNull_shouldThrowException() {
appendCharAtPosition.addCharUsingStringBuilder(null, letter, 3);
}
}

7
java-strings-ops/src/test/java/com/baeldung/string/PalindromeUnitTest.java
View File

@@ -1,6 +1,7 @@
package com.baeldung.string;
import static org.junit.Assert.*;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
public class PalindromeUnitTest {
@@ -20,9 +21,9 @@ public class PalindromeUnitTest {
"No mists or frost Simon",
"Stella won no wallets"
};
private Palindrome palindrome = new Palindrome();
@Test
public void whenWord_shouldBePalindrome() {
for (String word : words)

49
java-strings-ops/src/test/java/com/baeldung/string/SplitUnitTest.java
View File

@@ -14,59 +14,52 @@ public class SplitUnitTest {
@Test
public void givenString_whenSplit_thenReturnsArray_through_JavaLangString() {
assertThat("peter,james,thomas".split(","))
.containsExactly("peter", "james", "thomas");
assertThat("peter,james,thomas".split(",")).containsExactly("peter", "james", "thomas");
assertThat("car jeep scooter".split(" "))
.containsExactly("car", "jeep", "scooter");
assertThat("car jeep scooter".split(" ")).containsExactly("car", "jeep", "scooter");
assertThat("1-120-232323".split("-"))
.containsExactly("1", "120", "232323");
assertThat("1-120-232323".split("-")).containsExactly("1", "120", "232323");
assertThat("192.168.1.178".split("\\."))
.containsExactly("192", "168", "1", "178");
assertThat("192.168.1.178".split("\\.")).containsExactly("192", "168", "1", "178");
assertThat("b a, e, l.d u, n g".split("\\s+|,\\s*|\\.\\s*"))
.containsExactly("b", "a", "e", "l", "d", "u", "n", "g");
assertThat("b a, e, l.d u, n g".split("\\s+|,\\s*|\\.\\s*")).containsExactly("b", "a", "e", "l", "d", "u", "n", "g");
}
@Test
public void givenString_whenSplit_thenReturnsArray_through_StringUtils() {
StringUtils.split("car jeep scooter");
assertThat(StringUtils.split("car jeep scooter"))
.containsExactly("car", "jeep", "scooter");
assertThat(StringUtils.split("car jeep scooter")).containsExactly("car", "jeep", "scooter");
assertThat(StringUtils.split("car jeep scooter"))
.containsExactly("car", "jeep", "scooter");
assertThat(StringUtils.split("car jeep scooter")).containsExactly("car", "jeep", "scooter");
assertThat(StringUtils.split("car:jeep:scooter", ":"))
.containsExactly("car", "jeep", "scooter");
assertThat(StringUtils.split("car:jeep:scooter", ":")).containsExactly("car", "jeep", "scooter");
assertThat(StringUtils.split("car.jeep.scooter", "."))
.containsExactly("car", "jeep", "scooter");
assertThat(StringUtils.split("car.jeep.scooter", ".")).containsExactly("car", "jeep", "scooter");
}
@Test
public void givenString_whenSplit_thenReturnsList_Splitter() {
//given
List<String> resultList = Splitter.on(',').trimResults().omitEmptyStrings().splitToList("car,jeep,, scooter");
// given
List<String> resultList = Splitter.on(',')
.trimResults()
.omitEmptyStrings()
.splitToList("car,jeep,, scooter");
assertThat(resultList)
.containsExactly("car", "jeep", "scooter");
assertThat(resultList).containsExactly("car", "jeep", "scooter");
}
@Test
public void givenStringContainsSpaces_whenSplitAndTrim_thenReturnsArray_using_Regex() {
assertThat(" car , jeep, scooter ".trim()
.split("\\s*,\\s*")).containsExactly("car", "jeep", "scooter");
.split("\\s*,\\s*")).containsExactly("car", "jeep", "scooter");
}
@Test
public void givenStringContainsSpaces_whenSplitAndTrim_thenReturnsArray_using_java_8() {
assertThat(Arrays.stream(" car , jeep, scooter ".split(","))
.map(String::trim)
.toArray(String[]::new)).containsExactly("car", "jeep", "scooter");
}
.map(String::trim)
.toArray(String[]::new)).containsExactly("car", "jeep", "scooter");
}
}

37
java-strings-ops/src/test/java/com/baeldung/string/StringComparisonUnitTest.java
View File

@@ -1,16 +1,16 @@
package com.baeldung.string;
import static org.assertj.core.api.Assertions.assertThat;
import java.util.Objects;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import java.util.Objects;
import static org.assertj.core.api.Assertions.assertThat;
public class StringComparisonUnitTest {
@Test
public void whenUsingComparisonOperator_ThenComparingStrings(){
public void whenUsingComparisonOperator_ThenComparingStrings() {
String string1 = "using comparison operator";
String string2 = "using comparison operator";
@@ -21,7 +21,7 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingEqualsMethod_ThenComparingStrings(){
public void whenUsingEqualsMethod_ThenComparingStrings() {
String string1 = "using equals method";
String string2 = "using equals method";
@@ -37,7 +37,7 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingEqualsIgnoreCase_ThenComparingStrings(){
public void whenUsingEqualsIgnoreCase_ThenComparingStrings() {
String string1 = "using equals ignore case";
String string2 = "USING EQUALS IGNORE CASE";
@@ -46,7 +46,7 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingCompareTo_ThenComparingStrings(){
public void whenUsingCompareTo_ThenComparingStrings() {
String author = "author";
String book = "book";
@@ -58,7 +58,7 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingCompareToIgnoreCase_ThenComparingStrings(){
public void whenUsingCompareToIgnoreCase_ThenComparingStrings() {
String author = "Author";
String book = "book";
@@ -70,7 +70,7 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingObjectsEqualsMethod_ThenComparingStrings(){
public void whenUsingObjectsEqualsMethod_ThenComparingStrings() {
String string1 = "using objects equals";
String string2 = "using objects equals";
@@ -84,7 +84,7 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingEqualsOfApacheCommons_ThenComparingStrings(){
public void whenUsingEqualsOfApacheCommons_ThenComparingStrings() {
assertThat(StringUtils.equals(null, null)).isTrue();
assertThat(StringUtils.equals(null, "equals method")).isFalse();
@@ -93,7 +93,7 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingEqualsIgnoreCaseOfApacheCommons_ThenComparingStrings(){
public void whenUsingEqualsIgnoreCaseOfApacheCommons_ThenComparingStrings() {
assertThat(StringUtils.equalsIgnoreCase(null, null)).isTrue();
assertThat(StringUtils.equalsIgnoreCase(null, "equals method")).isFalse();
@@ -102,7 +102,7 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingEqualsAnyOf_ThenComparingStrings(){
public void whenUsingEqualsAnyOf_ThenComparingStrings() {
assertThat(StringUtils.equalsAny(null, null, null)).isTrue();
assertThat(StringUtils.equalsAny("equals any", "equals any", "any")).isTrue();
@@ -112,18 +112,17 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingEqualsAnyIgnoreCase_ThenComparingStrings(){
public void whenUsingEqualsAnyIgnoreCase_ThenComparingStrings() {
assertThat(StringUtils.equalsAnyIgnoreCase(null, null, null)).isTrue();
assertThat(StringUtils.equalsAnyIgnoreCase("equals any", "equals any", "any")).isTrue();
assertThat(StringUtils.equalsAnyIgnoreCase("equals any", null, "equals any")).isTrue();
assertThat(StringUtils.equalsAnyIgnoreCase(null, "equals", "any")).isFalse();
assertThat(StringUtils.equalsAnyIgnoreCase(
"equals any ignore case", "EQUALS ANY IGNORE CASE", "any")).isTrue();
assertThat(StringUtils.equalsAnyIgnoreCase("equals any ignore case", "EQUALS ANY IGNORE CASE", "any")).isTrue();
}
@Test
public void whenUsingCompare_thenComparingStringsWithNulls(){
public void whenUsingCompare_thenComparingStringsWithNulls() {
assertThat(StringUtils.compare(null, null)).isEqualTo(0);
assertThat(StringUtils.compare(null, "abc")).isEqualTo(-1);
@@ -134,7 +133,7 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingCompareIgnoreCase_ThenComparingStringsWithNulls(){
public void whenUsingCompareIgnoreCase_ThenComparingStringsWithNulls() {
assertThat(StringUtils.compareIgnoreCase(null, null)).isEqualTo(0);
assertThat(StringUtils.compareIgnoreCase(null, "abc")).isEqualTo(-1);
@@ -145,7 +144,7 @@ public class StringComparisonUnitTest {
}
@Test
public void whenUsingCompareWithNullIsLessOption_ThenComparingStrings(){
public void whenUsingCompareWithNullIsLessOption_ThenComparingStrings() {
assertThat(StringUtils.compare(null, "abc", true)).isEqualTo(-1);
assertThat(StringUtils.compare(null, "abc", false)).isEqualTo(1);

6
java-strings-ops/src/test/java/com/baeldung/string/StringHelperUnitTest.java
View File

@@ -1,11 +1,11 @@
package com.baeldung.string;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
public class StringHelperUnitTest {
public static final String TEST_STRING = "abcdef";

8
java-strings-ops/src/test/java/com/baeldung/stringisnumeric/CoreJavaIsNumericUnitTest.java → java-strings-ops/src/test/java/com/baeldung/string/isnumeric/CoreJavaIsNumericUnitTest.java
View File

@@ -1,4 +1,4 @@
package com.baeldung.stringisnumeric;
package com.baeldung.string.isnumeric;
import static org.assertj.core.api.Assertions.assertThat;
@@ -13,16 +13,16 @@ public class CoreJavaIsNumericUnitTest {
}
return true;
}
@Test
public void whenUsingCoreJava_thenTrue() {
// Valid Numbers
assertThat(isNumeric("22")).isTrue();
assertThat(isNumeric("5.05")).isTrue();
assertThat(isNumeric("-200")).isTrue();
assertThat(isNumeric("-200")).isTrue();
assertThat(isNumeric("10.0d")).isTrue();
assertThat(isNumeric(" 22 ")).isTrue();
// Invalid Numbers
assertThat(isNumeric(null)).isFalse();
assertThat(isNumeric("")).isFalse();

4
java-strings/src/test/java/com/baeldung/stringisnumeric/NumberUtilsIsCreatableUnitTest.java → java-strings-ops/src/test/java/com/baeldung/string/isnumeric/NumberUtilsIsCreatableUnitTest.java
View File

@@ -1,4 +1,4 @@
package com.baeldung.stringisnumeric;
package com.baeldung.string.isnumeric;
import static org.assertj.core.api.Assertions.assertThat;
@@ -17,7 +17,7 @@ public class NumberUtilsIsCreatableUnitTest {
assertThat(NumberUtils.isCreatable("0xFF")).isTrue();
assertThat(NumberUtils.isCreatable("07")).isTrue();
assertThat(NumberUtils.isCreatable("2.99e+8")).isTrue();
// Invalid Numbers
assertThat(NumberUtils.isCreatable(null)).isFalse();
assertThat(NumberUtils.isCreatable("")).isFalse();

4
java-strings/src/test/java/com/baeldung/stringisnumeric/NumberUtilsIsParsableUnitTest.java → java-strings-ops/src/test/java/com/baeldung/string/isnumeric/NumberUtilsIsParsableUnitTest.java
View File

@@ -1,4 +1,4 @@
package com.baeldung.stringisnumeric;
package com.baeldung.string.isnumeric;
import static org.assertj.core.api.Assertions.assertThat;
@@ -13,7 +13,7 @@ public class NumberUtilsIsParsableUnitTest {
assertThat(NumberUtils.isParsable("-23")).isTrue();
assertThat(NumberUtils.isParsable("2.2")).isTrue();
assertThat(NumberUtils.isParsable("09")).isTrue();
// Invalid Numbers
assertThat(NumberUtils.isParsable(null)).isFalse();
assertThat(NumberUtils.isParsable("")).isFalse();

6
java-strings/src/test/java/com/baeldung/stringisnumeric/RegularExpressionsUnitTest.java → java-strings-ops/src/test/java/com/baeldung/string/isnumeric/RegularExpressionsUnitTest.java
View File

@@ -1,4 +1,4 @@
package com.baeldung.stringisnumeric;
package com.baeldung.string.isnumeric;
import static org.assertj.core.api.Assertions.assertThat;
@@ -8,14 +8,14 @@ public class RegularExpressionsUnitTest {
public static boolean isNumeric(String strNum) {
return strNum.matches("-?\\d+(\\.\\d+)?");
}
@Test
public void whenUsingRegularExpressions_thenTrue() {
// Valid Numbers
assertThat(isNumeric("22")).isTrue();
assertThat(isNumeric("5.05")).isTrue();
assertThat(isNumeric("-200")).isTrue();
// Invalid Numbers
assertThat(isNumeric("abc")).isFalse();
}

7
java-strings/src/test/java/com/baeldung/stringisnumeric/StringUtilsIsNumericSpaceUnitTest.java → java-strings-ops/src/test/java/com/baeldung/string/isnumeric/StringUtilsIsNumericSpaceUnitTest.java
View File

@@ -1,8 +1,9 @@
package com.baeldung.stringisnumeric;
package com.baeldung.string.isnumeric;
import static org.assertj.core.api.Assertions.assertThat;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import static org.assertj.core.api.Assertions.assertThat;
public class StringUtilsIsNumericSpaceUnitTest {
@Test
@@ -13,7 +14,7 @@ public class StringUtilsIsNumericSpaceUnitTest {
assertThat(StringUtils.isNumericSpace("")).isTrue();
assertThat(StringUtils.isNumericSpace(" ")).isTrue();
assertThat(StringUtils.isNumericSpace("12 3")).isTrue();
// Invalid Numbers
assertThat(StringUtils.isNumericSpace(null)).isFalse();
assertThat(StringUtils.isNumericSpace("ab2c")).isFalse();

7
java-strings/src/test/java/com/baeldung/stringisnumeric/StringUtilsIsNumericUnitTest.java → java-strings-ops/src/test/java/com/baeldung/string/isnumeric/StringUtilsIsNumericUnitTest.java
View File

@@ -1,8 +1,9 @@
package com.baeldung.stringisnumeric;
package com.baeldung.string.isnumeric;
import static org.assertj.core.api.Assertions.assertThat;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import static org.assertj.core.api.Assertions.assertThat;
public class StringUtilsIsNumericUnitTest {
@Test
@@ -11,7 +12,7 @@ public class StringUtilsIsNumericUnitTest {
assertThat(StringUtils.isNumeric("123")).isTrue();
assertThat(StringUtils.isNumeric("١٢٣")).isTrue();
assertThat(StringUtils.isNumeric("१२३")).isTrue();
// Invalid Numbers
assertThat(StringUtils.isNumeric(null)).isFalse();
assertThat(StringUtils.isNumeric("")).isFalse();

25
java-strings-ops/src/test/java/com/baeldung/string/tostring/CustomerArrayToStringUnitTest.java
View File

@@ -5,21 +5,20 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
public class CustomerArrayToStringUnitTest {
private static final String CUSTOMER_ARRAY_TO_STRING
= "Customer [orders=[Order [orderId=A1111, desc=Game, value=0]], getFirstName()=Rajesh, getLastName()=Bhojwani]";
private static final String CUSTOMER_ARRAY_TO_STRING = "Customer [orders=[Order [orderId=A1111, desc=Game, value=0]], getFirstName()=Rajesh, getLastName()=Bhojwani]";
@Test
public void givenArray_whenToString_thenCustomerDetails() {
CustomerArrayToString customer = new CustomerArrayToString();
customer.setFirstName("Rajesh");
customer.setLastName("Bhojwani");
Order[] orders = new Order[1];
orders[0] = new Order();
orders[0].setOrderId("A1111");
orders[0].setDesc("Game");
orders[0].setStatus("In-Shiping");
customer.setOrders(orders);
CustomerArrayToString customer = new CustomerArrayToString();
customer.setFirstName("Rajesh");
customer.setLastName("Bhojwani");
Order[] orders = new Order[1];
orders[0] = new Order();
orders[0].setOrderId("A1111");
orders[0].setDesc("Game");
orders[0].setStatus("In-Shiping");
customer.setOrders(orders);
assertEquals(CUSTOMER_ARRAY_TO_STRING, customer.toString());
}

9
java-strings-ops/src/test/java/com/baeldung/string/tostring/CustomerComplexObjectToStringUnitTest.java
View File

@@ -5,20 +5,19 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
public class CustomerComplexObjectToStringUnitTest {
private static final String CUSTOMER_COMPLEX_TO_STRING
= "Customer [order=Order [orderId=A1111, desc=Game, value=0], getFirstName()=Rajesh, getLastName()=Bhojwani]";
private static final String CUSTOMER_COMPLEX_TO_STRING = "Customer [order=Order [orderId=A1111, desc=Game, value=0], getFirstName()=Rajesh, getLastName()=Bhojwani]";
@Test
public void givenComplex_whenToString_thenCustomerDetails() {
CustomerComplexObjectToString customer = new CustomerComplexObjectToString();
customer.setFirstName("Rajesh");
customer.setLastName("Bhojwani");
Order order = new Order();
Order order = new Order();
order.setOrderId("A1111");
order.setDesc("Game");
order.setStatus("In-Shiping");
customer.setOrder(order);
assertEquals(CUSTOMER_COMPLEX_TO_STRING, customer.toString());
}

6
java-strings-ops/src/test/java/com/baeldung/string/tostring/CustomerPrimitiveToStringUnitTest.java
View File

@@ -6,8 +6,7 @@ import org.junit.jupiter.api.Test;
public class CustomerPrimitiveToStringUnitTest {
private static final String CUSTOMER_PRIMITIVE_TO_STRING
= "Customer [balance=110, getFirstName()=Rajesh, getLastName()=Bhojwani]";
private static final String CUSTOMER_PRIMITIVE_TO_STRING = "Customer [balance=110, getFirstName()=Rajesh, getLastName()=Bhojwani]";
@Test
public void givenPrimitive_whenToString_thenCustomerDetails() {
@@ -15,8 +14,7 @@ public class CustomerPrimitiveToStringUnitTest {
customer.setFirstName("Rajesh");
customer.setLastName("Bhojwani");
customer.setBalance(110);
assertEquals(CUSTOMER_PRIMITIVE_TO_STRING, customer.toString());
}
}

35
java-strings-ops/src/test/java/com/baeldung/string/tostring/CustomerWrapperCollectionToStringUnitTest.java
View File

@@ -8,26 +8,25 @@ import java.util.List;
import org.junit.jupiter.api.Test;
public class CustomerWrapperCollectionToStringUnitTest {
private static final String CUSTOMER_WRAPPER_COLLECTION_TO_STRING
= "Customer [score=8, orders=[Book, Pen], fullname=Bhojwani, Rajesh, getFirstName()=Rajesh, getLastName()=Bhojwani]";
private static final String CUSTOMER_WRAPPER_COLLECTION_TO_STRING = "Customer [score=8, orders=[Book, Pen], fullname=Bhojwani, Rajesh, getFirstName()=Rajesh, getLastName()=Bhojwani]";
@Test
public void givenWrapperCollectionStrBuffer_whenToString_thenCustomerDetails() {
CustomerWrapperCollectionToString customer = new CustomerWrapperCollectionToString();
customer.setFirstName("Rajesh");
customer.setLastName("Bhojwani");
customer.setScore(8);
List<String> orders = new ArrayList<String>();
orders.add("Book");
orders.add("Pen");
customer.setOrders(orders);
StringBuffer fullname = new StringBuffer();
fullname.append(customer.getLastName()+", "+ customer.getFirstName());
customer.setFullname(fullname);
assertEquals(CUSTOMER_WRAPPER_COLLECTION_TO_STRING, customer.toString());
CustomerWrapperCollectionToString customer = new CustomerWrapperCollectionToString();
customer.setFirstName("Rajesh");
customer.setLastName("Bhojwani");
customer.setScore(8);
List<String> orders = new ArrayList<String>();
orders.add("Book");
orders.add("Pen");
customer.setOrders(orders);
StringBuffer fullname = new StringBuffer();
fullname.append(customer.getLastName() + ", " + customer.getFirstName());
customer.setFullname(fullname);
assertEquals(CUSTOMER_WRAPPER_COLLECTION_TO_STRING, customer.toString());
}
}

3
java-strings-ops/src/test/java/com/baeldung/stringpool/StringPoolUnitTest.java
View File

@@ -1,7 +1,8 @@
package com.baeldung.stringpool;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
import static org.assertj.core.api.Assertions.*;
public class StringPoolUnitTest {