week number of the year in java pgm

Display week number of the year

import java.util.*;

public class Main

{

   public static void main(String[] args) throws Exception

{

    Date d1 = new Date();

   Calendar cl = Calendar. getInstance();

  cl.setTime(d1);

          System.out.println("today is "+ cl.WEEK_OF_YEAR+ " week of the year");

          System.out.println("today is a "+cl.DAY_OF_MONTH + "month of the year");

          System.out.println("today is a "+cl.WEEK_OF_MONTH +"week of the month");

   }

}