Java Calendar Day truncateDay(Calendar calendar)

Description

Truncate the calendar's Calendar.HOUR, Calendar.MINUTE, Calendar.SECOND, Calendar.MILLISECOND to ZERO.

License

Apache License

Parameter

Parameter	Description
calendar	a parameter

Declaration

public static Calendar truncateDay(Calendar calendar) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.util.Calendar;

public class Main {
    /**//from w  w w  .j  ava2 s .  c o  m
     * Truncate the calendar's Calendar.HOUR, Calendar.MINUTE, Calendar.SECOND, Calendar.MILLISECOND to ZERO.
     * 
     * @param calendar
     * @return
     */
    public static Calendar truncateDay(Calendar calendar) {
        if (calendar == null) {
            throw new IllegalArgumentException("input is null");
        }
        calendar.set(Calendar.AM_PM, Calendar.AM);
        calendar.set(Calendar.HOUR, 0);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        calendar.set(Calendar.MILLISECOND, 0);
        return calendar;
    }
}

Related

1. toCountWorkDays(GregorianCalendar start, GregorianCalendar end)
2. todayCalendar()
3. toEndOfDayCalendar(Date date)
4. toNextWorkDay(Calendar cal)
5. trimToDay(Calendar calendar)