Mega Code Archive

 

Categories / Java Tutorial / Data Type

 

Substract hours from current date using Calendar add method

import java.util.Calendar; public class Main {   public static void main(String[] args) {     Calendar now = Calendar.getInstance();     System.out.println("Current Date : " + (now.get(Calendar.MONTH) + 1) + "-"         + now.get(Calendar.DATE) + "-" + now.get(Calendar.YEAR));     System.out.println("Current time : " + now.get(Calendar.HOUR_OF_DAY) + ":"         + now.get(Calendar.MINUTE) + ":" + now.get(Calendar.SECOND));     now = Calendar.getInstance();     now.add(Calendar.HOUR, -3);     System.out.println("Time before 3 hours : " + now.get(Calendar.HOUR_OF_DAY) + ":"         + now.get(Calendar.MINUTE) + ":" + now.get(Calendar.SECOND));   } }