Computer Science 202
Introduction to Programming

Fall 2012, The College of Saint Rose

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OlderThanJava BlueJ Project

Click here to download a BlueJ project for OlderThanJava.

Download file: OlderThanJava.vls

OlderThanJava Source Code

The Java source code for OlderThanJava is below. Click on a file name to download it.

OlderThanJava.java

/**
 * Class example demonstrating the if statement
 *
 * It prompts for a birth year, prints out what age that person will
 * turn this year, and then an extra message only if that person is
 * older than the Java programming language
 *
 * Jim Teresco, The College of Saint Rose, CSC 202, Fall 2012
 *
 * $Id: OlderThanJava.java 1907 2012-09-19 18:47:12Z terescoj $
 */

import java.util.Scanner;

public class OlderThanJava
{
    public static void main(String args[]) {

        // we use named constants for some of the "magic numbers" we use 
        // later in the program.
        final int THIS_YEAR = 2012;
        final int JAVA_BIRTH_YEAR = 1995;

        // usual procedure: construct a Scanner for keyboard input
        Scanner kbd = new Scanner(System.in);

        // read in the user's birth year
        System.out.print("What year were you born? ");
        int birthYear = kbd.nextInt();

        // message for everyone
        System.out.println("Hey, you turn " + (THIS_YEAR - birthYear) + " this year!");

        // message only for the "old"
        if (birthYear < JAVA_BIRTH_YEAR) {
            System.out.println("You are older than Java!");
        }
    }
}