find Week of Month in java

import java.util.Calendar;

public class WeekOfMonth {

    public static void main(String[] args) {
        Calendar ca1 = Calendar.getInstance();

        /*
        set(int year, int month, int date)
        Jan=0,Feb=1,Mar=2...
        */
        ca1.set(2009,4,22);

        int WEEK_OF_MONTH=ca1.get(Calendar.WEEK_OF_MONTH);
        System.out.println("Week of Month :"+WEEK_OF_MONTH);

        // More Calendar Date option can check
        /*
        int DAY_OF_MONTH=ca1.get(Calendar.DAY_OF_MONTH);
        int DAY_OF_WEEK=ca1.get(Calendar.DAY_OF_WEEK);
        int DAY_OF_YEAR=ca1.get(Calendar.DAY_OF_YEAR);
        int WEEK_OF_YEAR=ca1.get(Calendar.WEEK_OF_YEAR);
        */
    }
}