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[BAEL-8232] - Moved java string related code and github links into new module java-strings

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This commit is contained in:
amit2103
2018-08-18 20:54:24 +05:30
parent 3a6638074f
commit ab17b8e697
51 changed files with 284 additions and 80 deletions
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31
java-strings/src/test/java/com/baeldung/stringisnumeric/CoreJavaIsNumericUnitTest.java Normal file
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package com.baeldung.stringisnumeric;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class CoreJavaIsNumericUnitTest {
public static boolean isNumeric(String strNum) {
try {
double d = Double.parseDouble(strNum);
} catch (NumberFormatException | NullPointerException nfe) {
return false;
}
return true;
}
@Test
public void whenUsingCoreJava_thenTrue() {
// Valid Numbers
assertThat(isNumeric("22")).isTrue();
assertThat(isNumeric("5.05")).isTrue();
assertThat(isNumeric("-200")).isTrue();
assertThat(isNumeric("10.0d")).isTrue();
assertThat(isNumeric(" 22 ")).isTrue();
// Invalid Numbers
assertThat(isNumeric(null)).isFalse();
assertThat(isNumeric("")).isFalse();
assertThat(isNumeric("abc")).isFalse();
}
}

28
java-strings/src/test/java/com/baeldung/stringisnumeric/NumberUtilsIsCreatableUnitTest.java Normal file
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package com.baeldung.stringisnumeric;
import static org.assertj.core.api.Assertions.assertThat;
import org.apache.commons.lang3.math.NumberUtils;
import org.junit.Test;
public class NumberUtilsIsCreatableUnitTest {
@Test
public void givenApacheCommons_whenUsingIsParsable_thenTrue() {
// Valid Numbers
assertThat(NumberUtils.isCreatable("22")).isTrue();
assertThat(NumberUtils.isCreatable("5.05")).isTrue();
assertThat(NumberUtils.isCreatable("-200")).isTrue();
assertThat(NumberUtils.isCreatable("10.0d")).isTrue();
assertThat(NumberUtils.isCreatable("1000L")).isTrue();
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();
assertThat(NumberUtils.isCreatable("abc")).isFalse();
assertThat(NumberUtils.isCreatable(" 22 ")).isFalse();
assertThat(NumberUtils.isCreatable("09")).isFalse();
}
}

26
java-strings/src/test/java/com/baeldung/stringisnumeric/NumberUtilsIsParsableUnitTest.java Normal file
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package com.baeldung.stringisnumeric;
import static org.assertj.core.api.Assertions.assertThat;
import org.apache.commons.lang3.math.NumberUtils;
import org.junit.Test;
public class NumberUtilsIsParsableUnitTest {
@Test
public void givenApacheCommons_whenUsingIsParsable_thenTrue() {
// Valid Numbers
assertThat(NumberUtils.isParsable("22")).isTrue();
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();
assertThat(NumberUtils.isParsable("6.2f")).isFalse();
assertThat(NumberUtils.isParsable("9.8d")).isFalse();
assertThat(NumberUtils.isParsable("22L")).isFalse();
assertThat(NumberUtils.isParsable("0xFF")).isFalse();
assertThat(NumberUtils.isParsable("2.99e+8")).isFalse();
}
}

22
java-strings/src/test/java/com/baeldung/stringisnumeric/RegularExpressionsUnitTest.java Normal file
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package com.baeldung.stringisnumeric;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
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();
}
}

23
java-strings/src/test/java/com/baeldung/stringisnumeric/StringUtilsIsNumericSpaceUnitTest.java Normal file
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package com.baeldung.stringisnumeric;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import static org.assertj.core.api.Assertions.assertThat;
public class StringUtilsIsNumericSpaceUnitTest {
@Test
public void givenApacheCommons_whenUsingIsNumericSpace_thenTrue() {
// Valid Numbers
assertThat(StringUtils.isNumericSpace("123")).isTrue();
assertThat(StringUtils.isNumericSpace("١٢٣")).isTrue();
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();
assertThat(StringUtils.isNumericSpace("12.3")).isFalse();
assertThat(StringUtils.isNumericSpace("-123")).isFalse();
}
}

24
java-strings/src/test/java/com/baeldung/stringisnumeric/StringUtilsIsNumericUnitTest.java Normal file
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package com.baeldung.stringisnumeric;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import static org.assertj.core.api.Assertions.assertThat;
public class StringUtilsIsNumericUnitTest {
@Test
public void givenApacheCommons_whenUsingIsNumeric_thenTrue() {
// Valid Numbers
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();
assertThat(StringUtils.isNumeric(" ")).isFalse();
assertThat(StringUtils.isNumeric("12 3")).isFalse();
assertThat(StringUtils.isNumeric("ab2c")).isFalse();
assertThat(StringUtils.isNumeric("12.3")).isFalse();
assertThat(StringUtils.isNumeric("-123")).isFalse();
}
}