Set the time component of the calendar to midday. - Java java.util

Java examples for java.util:Day

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Description

Set the time component of the calendar to midday.

Demo Code

/*/*from  w  ww  .  j  a va2s. c o  m*/
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 * McLean Computer Services Open Source Software License
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 * (Looks like the BSD license, but less restrictive.)
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 * Copyright (c) 2006-2011 Evan McLean. All rights reserved.
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//package com.java2s;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;

public class Main {
    public static void main(String[] argv) throws Exception {
        Calendar cal = Calendar.getInstance();
        setMidday(cal);
    }

    /**
     * Set the time component of the calendar to midday.
     * 
     * @param cal
     */
    public static void setMidday(final Calendar cal) {
        cal.set(Calendar.MILLISECOND, 0);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.HOUR_OF_DAY, 12);
    }

    /**
     * Set the time component of the date to midday, using the local time zone.
     * 
     * @param dt
     */
    public static void setMidday(final Date dt) {
        final Calendar cal = Calendar.getInstance();
        cal.setTime(dt);
        setMidday(cal);
        dt.setTime(cal.getTimeInMillis());
    }

    /**
     * Set the time component of the date to midday.
     * 
     * @param dt
     * @param tz
     */
    public static void setMidday(final Date dt, final TimeZone tz) {
        final Calendar cal = Calendar.getInstance(tz);
        cal.setTime(dt);
        setMidday(cal);
        dt.setTime(cal.getTimeInMillis());
    }
}

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