import java.text.*;
import java.util.*;

public class HourFormat {

    public static void main(String args[]) {

        String s;
        Format formatter;
        Date date = new Date();

        // The hour (1-12)
        formatter = new SimpleDateFormat("h");     // 8
        s = formatter.format(date);
        System.out.println("The hour (1-12) : " + s);

        formatter = new SimpleDateFormat("hh");    // 08
        s = formatter.format(date);
        System.out.println("The hour (1-12) : " + s);

        // The hour (0-23)
        formatter = new SimpleDateFormat("H");     // 8
        s = formatter.format(date);
        System.out.println("The hour (0-23) : " + s);

        formatter = new SimpleDateFormat("HH");    // 08
        s = formatter.format(date);
        System.out.println("The hour (0-23) : " + s);
    }
}