BAEL-3224 - Checking if 2 Java Dates are in the same day
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Al Niyas
parent
ac75af110b
commit
7034761130
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>core-java-date-operations</artifactId>
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<version>${project.parent.version}</version>
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<packaging>jar</packaging>
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>core-java-date-operations</artifactId>
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<version>${project.parent.version}</version>
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<packaging>jar</packaging>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-java</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<relativePath>../../parent-java</relativePath>
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</parent>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-java</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<relativePath>../../parent-java</relativePath>
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</parent>
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<dependencies>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-lang3</artifactId>
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<version>${commons-lang3.version}</version>
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</dependency>
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<dependency>
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<groupId>joda-time</groupId>
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<artifactId>joda-time</artifactId>
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<version>${joda-time.version}</version>
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</dependency>
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<dependency>
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<groupId>com.darwinsys</groupId>
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<artifactId>hirondelle-date4j</artifactId>
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<version>${hirondelle-date4j.version}</version>
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</dependency>
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</dependencies>
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<properties>
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<joda-time.version>2.10</joda-time.version>
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<hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
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</properties>
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</project>
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package com.baeldung.date.comparison;
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import java.text.SimpleDateFormat;
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import java.time.LocalDate;
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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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import java.util.TimeZone;
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import org.apache.commons.lang3.time.DateUtils;
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import hirondelle.date4j.DateTime;
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public class DateComparisonUtils {
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public static boolean isSameDayUsingLocalDate(Date date1, Date date2) {
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LocalDate localDate1 = date1.toInstant()
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.atZone(ZoneId.systemDefault())
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.toLocalDate();
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LocalDate localDate2 = date2.toInstant()
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.atZone(ZoneId.systemDefault())
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.toLocalDate();
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return localDate1.isEqual(localDate2);
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}
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public static boolean isSameDayUsingSimpleDateFormat(Date date1, Date date2) {
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SimpleDateFormat fmt = new SimpleDateFormat("yyyyMMdd");
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return fmt.format(date1)
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.equals(fmt.format(date2));
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}
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public static boolean isSameDayUsingCalendar(Date date1, Date date2) {
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Calendar calendar1 = Calendar.getInstance();
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calendar1.setTime(date1);
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Calendar calendar2 = Calendar.getInstance();
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calendar2.setTime(date2);
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return calendar1.get(Calendar.YEAR) == calendar2.get(Calendar.YEAR) && calendar1.get(Calendar.MONTH) == calendar2.get(Calendar.MONTH) && calendar1.get(Calendar.DAY_OF_MONTH) == calendar2.get(Calendar.DAY_OF_MONTH);
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}
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public static boolean isSameDayUsingApacheCommons(Date date1, Date date2) {
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return DateUtils.isSameDay(date1, date2);
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}
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public static boolean isSameDayUsingJoda(Date date1, Date date2) {
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org.joda.time.LocalDate localDate1 = new org.joda.time.LocalDate(date1);
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org.joda.time.LocalDate localDate2 = new org.joda.time.LocalDate(date2);
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return localDate1.equals(localDate2);
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}
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public static boolean isSameDayUsingDate4j(Date date1, Date date2) {
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DateTime dateObject1 = DateTime.forInstant(date1.getTime(), TimeZone.getDefault());
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DateTime dateObject2 = DateTime.forInstant(date2.getTime(), TimeZone.getDefault());
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return dateObject1.isSameDayAs(dateObject2);
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}
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}
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@ -0,0 +1,53 @@
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package com.baeldung.date.comparison;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertTrue;
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import java.time.LocalDateTime;
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import java.time.ZoneId;
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import java.util.Date;
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import org.junit.jupiter.api.Test;
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public class DateComparisonUtilsUnitTest {
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private Date day1Morning = toDate(LocalDateTime.of(2019, 10, 19, 6, 30, 40));
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private Date day1Evening = toDate(LocalDateTime.of(2019, 10, 19, 18, 30, 50));
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private Date day2Morning = toDate(LocalDateTime.of(2019, 10, 20, 6, 30, 50));
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private Date toDate(LocalDateTime localDateTime) {
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return Date.from(localDateTime.atZone(ZoneId.systemDefault())
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.toInstant());
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}
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@Test
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void givenDatesWithDifferentTime_whenIsSameDay_thenReturnsTrue() {
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assertTrue(DateComparisonUtils.isSameDayUsingLocalDate(day1Morning, day1Evening));
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assertTrue(DateComparisonUtils.isSameDayUsingSimpleDateFormat(day1Morning, day1Evening));
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assertTrue(DateComparisonUtils.isSameDayUsingCalendar(day1Morning, day1Evening));
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assertTrue(DateComparisonUtils.isSameDayUsingApacheCommons(day1Morning, day1Evening));
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assertTrue(DateComparisonUtils.isSameDayUsingJoda(day1Morning, day1Evening));
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assertTrue(DateComparisonUtils.isSameDayUsingDate4j(day1Morning, day1Evening));
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}
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@Test
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void givenDates_whenIsDifferentDay_thenReturnsFalse() {
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assertFalse(DateComparisonUtils.isSameDayUsingLocalDate(day1Morning, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingLocalDate(day1Evening, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingSimpleDateFormat(day1Morning, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingSimpleDateFormat(day1Evening, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingCalendar(day1Morning, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingCalendar(day1Evening, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingApacheCommons(day1Morning, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingApacheCommons(day1Evening, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingJoda(day1Morning, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingJoda(day1Evening, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingDate4j(day1Morning, day2Morning));
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assertFalse(DateComparisonUtils.isSameDayUsingDate4j(day1Evening, day2Morning));
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}
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}
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