Java Week Calculate weekStart()

Description

week Start

License

LGPL

Return

the starting moment of the current week

Declaration

public static GregorianCalendar weekStart() 

Method Source Code

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

import java.util.*;

public class Main {
    /** First day of work within a week */
    public static final int FIRST_DAY_OF_WORK = Calendar.MONDAY;

    /**/*w w  w.j  a v  a 2s . c  o m*/
       @return the starting moment of the current week
     */
    public static GregorianCalendar weekStart() {
        return weekStart(new GregorianCalendar());
    }

    /**
       @return the starting moment of the week containing the given date
       Note that it is set to the FIRST_DAY_OF_WORK.
     */
    public static GregorianCalendar weekStart(GregorianCalendar cal) {
        GregorianCalendar newCal = (GregorianCalendar) cal.clone();
        newCal.set(Calendar.DAY_OF_WEEK, FIRST_DAY_OF_WORK);
        newCal.set(Calendar.HOUR_OF_DAY, 0);
        newCal.set(Calendar.MINUTE, 0);
        newCal.set(Calendar.SECOND, 0);
        newCal.set(Calendar.MILLISECOND, 0);
        return newCal;
    }
}

Related

1. startOfWeek(Date datum)
2. weekCal(int weekNumber)
3. weekCount(Date start, Date end)
4. weekNumber()
5. weeksInYear(int year)