Question

How to substract weeks form current date using Calendar in Java

Answer 1

package javaapplication1;

import java.util.Calendar;

public class JavaApplication1 {

    public static void main(String[] args) {

        Calendar now = Calendar.getInstance();

        System.out.println("Today: " + (now.get(Calendar.MONTH) + 1)  + "-"
                           + now.get(Calendar.DATE)
                           + "-"
                           + now.get(Calendar.YEAR));
                     
        // substract 4 weeks from current date
        now.add(Calendar.WEEK_OF_YEAR, -4);
        
        System.out.println("Today - 4 Weeks: " + (now.get(Calendar.MONTH) + 1)  + "-"
                           + now.get(Calendar.DATE)
                           + "-"
                           + now.get(Calendar.YEAR));
    }
}

/*

run:

Today: 10-17-2016
Today - 4 Weeks: 9-19-2016

*/

 

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