Chapter 13.4, Problem 13.4.2CP

Program Plan Intro

abstract class:

An abstract class is a class which may or may not include abstract methods and cannot be instantiated but rather can be sub classed.

Program Code: 

Filename: TestCalendar.Java

//Import the packages

import java.util.*;

//class definition

public class TestCalendar

{

//main function definition

public static void main(String[] args)

{

/* Construct a Gregorian calendar for the current date and time*/

    Calendar calendar = new GregorianCalendar();

//print current time by using object Calender

System.out.println("Current time is " + new Date());

System.out.println("YEAR: " + calendar.get(Calendar.YEAR));

System.out.println("MONTH: " + calendar.get(Calendar.MONTH));

System.out.println("DATE: " + calendar.get(Calendar.DATE));

System.out.println("HOUR: " + calendar.get(Calendar.HOUR));

    System.out.println("HOUR_OF_DAY: " +

    calendar.get(Calendar.HOUR_OF_DAY));

System.out.println("MINUTE: " +  calendar.get(Calendar.MINUTE));

System.out.println("SECOND: " + calendar.get(Calendar.SECOND));

//print the current day of the week

System.out.println("DAY_OF_WEEK: " calendar.get(Calendar.DAY_OF_WEEK));

//print the current day of the month

    System.out.println("DAY_OF_MONTH: " +

     calendar.get(Calendar.DAY_OF_MONTH));

//print the current day of the year

    System.out.println("DAY_OF_YEAR: " +

     calendar.get(Calendar.DAY_OF_YEAR));

//print the current week of the month

    System.out.println("WEEK_OF_MONTH: " +

     calendar.get(Calendar.WEEK_OF_MONTH));

//print the current week of the year

    System.out.println("WEEK_OF_YEAR: " +

     calendar.get(Calendar.WEEK_OF_YEAR));

//print whether time is in A.M or P.M.

System.out.println("AM_PM: " + calendar.get(Calendar.AM_PM));

    // Construct a calendar for December 25, 1997

Calendar calendar1 = new GregorianCalendar(1997, 11, 25);

String[] dayNameOfWeek = {"Sunday", "Monday", "Tuesday", "Wednesday","Thursday", "Friday", "Saturday"};

//print day of the week

    System.out.println("December 25, 1997 is a " +

        dayNameOfWeek[calendar1.get(Calendar.DAY_OF_WEEK) - 1]);

  }

}