Tuesday, October 4, 2016

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Java Program To Display Random Character

The program below is the solution to Liang's Introduction to Java Programming (9th Edition) Chapter 2 Exercise 2.22.

Question: Write a program that displays a random uppercase letter using the System.CurrentTimeMillis() method.

/**
 *
 * @Author: Aghatise Osazuwa
 * Website: www.cscprogrammingtutorials.com
 *
 * Exercise 2.22 - Random character
 *
 */ 

public class Ex02_22 {

    public static void main(String[] args) {
        
        // Display Program Information
        System.out.println("This Program Displays A Random Upper-case Letter "
                + "Using The System.CurrentTimeMillis() Method.");
        // obtain current time
        long time = System.currentTimeMillis();
        // display random upper-case letter
        long value = 'A' + time % ('Z' - 'A' + 1);
        // display the upper-case letter
        System.out.print("Random Letter: " + (char) value + "\n");
    }
}

Click here to see other solutions to Introduction to Java Programming.

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