Java Day of Month getFirstDayOfMonth(Date date)

Description

get First Day Of Month

License

Apache License

Declaration

public static Date getFirstDayOfMonth(Date date) 

Method Source Code

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

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

public class Main {

    public static Date getFirstDayOfMonth(int year, int month) {
        Calendar calender = Calendar.getInstance();
        calender.set(year, month - 1, 1);
        calender.set(Calendar.DAY_OF_MONTH, calender.getActualMinimum(Calendar.DAY_OF_MONTH));
        setStartTimeOfDay(calender);//from w w  w.j  av  a  2 s.co m
        return calender.getTime();
    }

    public static Date getFirstDayOfMonth(Date date) {
        Calendar calender = Calendar.getInstance();
        calender.setTime(date);
        calender.set(Calendar.DAY_OF_MONTH, calender.getActualMinimum(Calendar.DAY_OF_MONTH));
        setStartTimeOfDay(calender);
        return calender.getTime();
    }

    private static void setStartTimeOfDay(Calendar calender) {
        calender.set(Calendar.HOUR_OF_DAY, calender.getActualMinimum(Calendar.HOUR_OF_DAY));
        calender.set(Calendar.MINUTE, calender.getActualMinimum(Calendar.MINUTE));
        calender.set(Calendar.SECOND, calender.getActualMinimum(Calendar.SECOND));
        calender.set(Calendar.MILLISECOND, calender.getActualMinimum(Calendar.MILLISECOND));
    }
}

Related

1. getDayOfMonth(Date date)
2. getDayOfMonth(Date date)
3. getDayOfMonth(Date date)
4. getDayOfMonth(Date dt)
5. getDayOfMonth(final Date date)
6. getFirstDayOfMonth(Date date)
7. getFirstDayOfMonth(java.util.Date date)
8. getFirstMiddleDayOfMonth(Date date)
9. getFistDayOfMonth(Date date)