BAEL-1074 Difference between two dates in Java (#2493)
* Different types of bean injection in Spring * Difference between two dates in java * Update README.md * Simple clean of difference between dates * Clean my test article
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Dassi orleando
maibin
parent
c12ba8618e
commit
8180274da2
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@ -141,3 +141,6 @@
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- [Guide to UUID in Java](http://www.baeldung.com/java-uuid)
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- [How to Get the Last Element of a Stream in Java?](http://www.baeldung.com/java-stream-last-element)
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- [Guide to Escaping Characters in Java RegExps](http://www.baeldung.com/java-regexp-escape-char)
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- [Period and Duration in Java](http://www.baeldung.com/java-period-duration)
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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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@ -186,6 +186,16 @@
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<artifactId>fscontext</artifactId>
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<version>${fscontext.version}</version>
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</dependency>
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<dependency>
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<groupId>joda-time</groupId>
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<artifactId>joda-time</artifactId>
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<version>${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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<build>
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@ -408,6 +418,8 @@
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<grep4j.version>1.8.7</grep4j.version>
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<lombok.version>1.16.12</lombok.version>
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<fscontext.version>4.6-b01</fscontext.version>
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<joda-time.version>2.9.9</joda-time.version>
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<hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
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<!-- testing -->
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<org.hamcrest.version>1.3</org.hamcrest.version>
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@ -416,9 +428,9 @@
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<assertj.version>3.6.1</assertj.version>
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<avaitility.version>1.7.0</avaitility.version>
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<!-- maven plugins -->
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<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
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<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
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</properties>
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</project>
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@ -0,0 +1,63 @@
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package com.baeldung;
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import org.joda.time.DateTime;
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import org.junit.Test;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.time.Duration;
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import java.time.ZonedDateTime;
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import java.util.Date;
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import java.util.Locale;
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import java.util.TimeZone;
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import java.util.concurrent.TimeUnit;
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import static org.junit.Assert.assertEquals;
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public class DateDiffUnitTest {
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@Test
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public void givenTwoDatesBeforeJava8_whenDifferentiating_thenWeGetSix() throws ParseException {
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SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy", Locale.ENGLISH);
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Date firstDate = sdf.parse("06/24/2017");
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Date secondDate = sdf.parse("06/30/2017");
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long diffInMillies = Math.abs(secondDate.getTime() - firstDate.getTime());
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long diff = TimeUnit.DAYS.convert(diffInMillies, TimeUnit.MILLISECONDS);
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assertEquals(diff, 6);
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}
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@Test
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public void givenTwoDatesInJava8_whenDifferentiating_thenWeGetSix() {
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ZonedDateTime now = ZonedDateTime.now();
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ZonedDateTime sixDaysBehind = now.minusDays(6);
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Duration duration = Duration.between(now, sixDaysBehind);
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long diff = Math.abs(duration.toDays());
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assertEquals(diff, 6);
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}
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@Test
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public void givenTwoDatesInJodaTime_whenDifferentiating_thenWeGetSix() {
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DateTime now = DateTime.now();
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DateTime sixDaysBehind = now.minusDays(6);
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org.joda.time.Duration duration = new org.joda.time.Duration(now, sixDaysBehind);
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long diff = Math.abs(duration.getStandardDays());
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assertEquals(diff, 6);
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}
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@Test
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public void givenTwoDatesInDate4j_whenDifferentiating_thenWeGetSix() {
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hirondelle.date4j.DateTime now = hirondelle.date4j.DateTime.now(TimeZone.getDefault());
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hirondelle.date4j.DateTime sixDaysBehind = now.minusDays(6);
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long diff = Math.abs(now.numDaysFrom(sixDaysBehind));
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assertEquals(diff, 6);
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}
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}
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@ -0,0 +1,5 @@
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## Relevant articles:
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- [Period and Duration in Java](http://www.baeldung.com/java-period-duration)
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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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@ -0,0 +1,58 @@
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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" 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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<groupId>com.baeldung</groupId>
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<artifactId>java-difference-date</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>java-difference-date</name>
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<description>Difference between two dates in java</description>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-modules</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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</parent>
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<dependencies>
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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>${hirondelle-date4j.version}</version>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>${junit.version}</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<target>1.8</target>
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<target>1.8</target>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<properties>
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<java.version>1.8</java.version>
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<junit.version>4.12</junit.version>
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<joda-time.version>2.9.9</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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@ -0,0 +1,61 @@
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package com.baeldung;
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import org.joda.time.DateTime;
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import org.junit.Test;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.time.Duration;
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import java.time.ZonedDateTime;
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import java.util.Date;
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import java.util.Locale;
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import java.util.TimeZone;
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import java.util.concurrent.TimeUnit;
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import static org.junit.Assert.assertEquals;
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public class DateDiffTest {
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@Test
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public void givenTwoDatesBeforeJava8_whenDifferentiating_thenWeGetSix() throws ParseException {
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SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy", Locale.ENGLISH);
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Date firstDate = sdf.parse("06/24/2017");
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Date secondDate = sdf.parse("06/30/2017");
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long diffInMillies = Math.abs(secondDate.getTime() - firstDate.getTime());
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long diff = TimeUnit.DAYS.convert(diffInMillies, TimeUnit.MILLISECONDS);
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assertEquals(diff, 6);
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}
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@Test
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public void givenTwoDatesInJava8_whenDifferentiating_thenWeGetSix() {
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ZonedDateTime now = ZonedDateTime.now();
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ZonedDateTime sixDaysBehind = now.minusDays(6);
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Duration duration = Duration.between(now, sixDaysBehind);
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long diff = Math.abs(duration.toDays());
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assertEquals(diff, 6);
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}
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@Test
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public void givenTwoDatesInJodaTime_whenDifferentiating_thenWeGetSix() {
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DateTime now = DateTime.now();
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DateTime sixDaysBehind = now.minusDays(6);
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org.joda.time.Duration duration = new org.joda.time.Duration(now, sixDaysBehind);
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long diff = Math.abs(duration.getStandardDays());
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assertEquals(diff, 6);
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}
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@Test
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public void givenTwoDatesInDate4j_whenDifferentiating_thenWeGetSix() {
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hirondelle.date4j.DateTime now = hirondelle.date4j.DateTime.now(TimeZone.getDefault());
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hirondelle.date4j.DateTime sixDaysBehind = now.minusDays(6);
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long diff = Math.abs(now.numDaysFrom(sixDaysBehind));
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assertEquals(diff, 6);
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}
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}
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