CalendarDemo.java

import java.util.Calendar;

public class CalendarDemo {

    public static void main(String[] args) {
        String months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };

        Calendar calendar = Calendar.getInstance();

        System.out.print("Date: ");
        System.out.print(months[calendar.get(Calendar.MONTH)]);
        System.out.print(" " + calendar.get(Calendar.DATE) + " ");
        System.out.println(calendar.get(Calendar.YEAR));

        System.out.print("Time: ");
        System.out.print(calendar.get(Calendar.HOUR) + ":");
        System.out.print(calendar.get(Calendar.MINUTE) + ":");
        System.out.println(calendar.get(Calendar.SECOND));

        calendar.set(Calendar.HOUR, 10);
        calendar.set(Calendar.MINUTE, 29);
        calendar.set(Calendar.SECOND, 22);
        System.out.print("Updated time: ");
        System.out.print(calendar.get(Calendar.HOUR) + ":");
        System.out.print(calendar.get(Calendar.MINUTE) + ":");
        System.out.println(calendar.get(Calendar.SECOND));
    }
}