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This java code demonstrates the use of joptionpane class to create interactive applications. The evenodd.java program asks users to input integers and determines whether the number is even or odd by using conditional statements and multiple dialog boxes for user interaction.
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// EvenOdd.java Java Foundations // // Demonstrates the use of the JOptionPane class. //******************************************************************** import javax.swing.JOptionPane; public class EvenOdd { //----------------------------------------------------------------- // Determines if the value input by the user is even or odd. // Uses multiple dialog boxes for user interaction. //----------------------------------------------------------------- public static void main (String[] args) { String numStr, result; int num, again; do { numStr = JOptionPane.showInputDialog ("Enter an integer: "); num = Integer.parseInt(numStr); result = "That number is " + ((num%2 == 0)? "even" : "odd"); JOptionPane.showMessageDialog (null, result);
again = JOptionPane.showConfirmDialog (null, "Do Another?"); } while (again == JOptionPane.YES_OPTION); System.out.println("here"); }