Java Date to Quarter getQuarterStart(Date date)

Description

get Quarter Start

License

Open Source License

Declaration

public static Date getQuarterStart(Date date) 

Method Source Code

//package com.java2s;

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

public class Main {
    public static Date getQuarterStart(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);//from   w ww .  ja va 2s .co m
        int month = cal.get(Calendar.MONTH);
        switch (month) {
        case 0:
        case 1:
        case 2:
            cal.set(Calendar.MONTH, Calendar.JANUARY);
            break;
        case 3:
        case 4:
        case 5:
            cal.set(Calendar.MONTH, Calendar.APRIL);
            break;
        case 6:
        case 7:
        case 8:
            cal.set(Calendar.MONTH, Calendar.JULY);
            break;
        case 9:
        case 10:
        case 11:
            cal.set(Calendar.MONTH, Calendar.OCTOBER);
            break;
        default:
            break;
        }
        cal.set(Calendar.DAY_OF_MONTH, 1);
        cal.set(Calendar.HOUR_OF_DAY, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);

        return cal.getTime();
    }
}

Related

1. getQuarterBounds(final Date date)
2. getQuarterlyKey(Date d)
3. getQuarterNum(Date date)
4. getQuarterNum(Date dt)
5. getQuarterOfDay(Date day)
6. getQuarterYear(Date dateParam)
7. getQuaterStart(Date date)