Add Date equivalent of isSameDay method
git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/lang/trunk@137972 13f79535-47bb-0310-9956-ffa450edef68
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@ -31,7 +31,7 @@ import java.util.TimeZone;
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* @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory</a>
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* @author Phil Steitz
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* @since 2.0
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* @version $Id: DateUtils.java,v 1.31 2004/10/08 00:09:01 scolebourne Exp $
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* @version $Id: DateUtils.java,v 1.32 2004/10/13 21:48:00 scolebourne Exp $
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*/
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public class DateUtils {
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@ -117,6 +117,31 @@ public class DateUtils {
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public DateUtils() {
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}
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//-----------------------------------------------------------------------
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/**
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* <p>Checks if two date objects are on the same day ignoring time.</p>
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*
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* <p>28 Mar 2002 13:45 and 28 Mar 2002 06:01 would return true.
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* 28 Mar 2002 13:45 and 12 Mar 2002 13:45 would return false.
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* </p>
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*
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* @param date1 the first date, not null
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* @param date2 the second date, not null
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* @return true if they represent the same day
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* @throws IllegalArgumentException if either date is <code>null</code>
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* @since 2.1
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*/
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public static boolean isSameDay(Date date1, Date date2) {
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if (date1 == null || date2 == null) {
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throw new IllegalArgumentException("The date must not be null");
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}
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Calendar cal1 = Calendar.getInstance();
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cal1.setTime(date1);
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Calendar cal2 = Calendar.getInstance();
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cal2.setTime(date2);
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return isSameDay(cal1, cal2);
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}
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//-----------------------------------------------------------------------
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/**
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* <p>Checks if two calendar objects are on the same day ignoring time.</p>
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@ -153,7 +153,20 @@ public class DateUtilsTest extends TestCase {
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}
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//-----------------------------------------------------------------------
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public void testIsSameDay() {
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public void testIsSameDay_Date() {
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Date date1 = new GregorianCalendar(2004, 6, 9, 13, 45).getTime();
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Date date2 = new GregorianCalendar(2004, 6, 9, 13, 45).getTime();
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assertEquals(true, DateUtils.isSameDay(date1, date2));
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date2 = new GregorianCalendar(2004, 6, 10, 13, 45).getTime();
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assertEquals(false, DateUtils.isSameDay(date1, date2));
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date1 = new GregorianCalendar(2004, 6, 10, 13, 45).getTime();
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assertEquals(true, DateUtils.isSameDay(date1, date2));
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date2 = new GregorianCalendar(2005, 6, 10, 13, 45).getTime();
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assertEquals(false, DateUtils.isSameDay(date1, date2));
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}
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//-----------------------------------------------------------------------
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public void testIsSameDay_Cal() {
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GregorianCalendar cal1 = new GregorianCalendar(2004, 6, 9, 13, 45);
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GregorianCalendar cal2 = new GregorianCalendar(2004, 6, 9, 13, 45);
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assertEquals(true, DateUtils.isSameDay(cal1, cal2));
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