Java Month End getEndOfMonth(Date dt)

Description

Return the End (last day of year) of the given Date Hour, minutes, seconds are set to 23:59:59

License

Open Source License

Declaration

public static Date getEndOfMonth(Date dt) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

public class Main {
    /** Return the End (last day of year) of the given Date
     *  Hour, minutes, seconds are set to 23:59:59
     * @return//  w  ww  .  j a  v a2s . c  o  m
     */
    public static Date getEndOfMonth(Date dt) {
        if (dt == null)
            return null;
        GregorianCalendar gc = new GregorianCalendar();
        gc.setTime(getStartOfMonth(dt));
        // Add a month
        gc.add(Calendar.MONTH, 1);
        // Take a day for last of of month
        gc.add(Calendar.DATE, -1);
        gc.set(Calendar.HOUR_OF_DAY, 23);
        gc.set(Calendar.MINUTE, 59);
        gc.set(Calendar.SECOND, 59);
        gc.set(Calendar.MILLISECOND, 999);
        return gc.getTime();
    }

    /**
     * Return the first day of the month from the Date given Hour, minutes,
     * seconds are set to 0:00:00
     * 
     * @return
     */
    public static Date getStartOfMonth(Date dt) {
        if (dt == null)
            return null;
        GregorianCalendar gc = new GregorianCalendar();
        gc.setTime(dt);
        gc.set(Calendar.DAY_OF_MONTH, 1);
        gc.set(Calendar.HOUR_OF_DAY, 0);
        gc.set(Calendar.MINUTE, 0);
        gc.set(Calendar.SECOND, 0);
        gc.set(Calendar.MILLISECOND, 0);
        return gc.getTime();
    }
}

Related

1. endOfMonth(Date date)
2. endOfMonth(Date date)
3. getEndOfMonth(Date date)
4. getEndOfMonth(long date)