Hi friend,


import javax.swing.*;

public class DialogPaneDemo {

public static void main(String[] args) {
//Declare local variables;
int a, b, c;
int average;
String str; // Temporary storage for JOptionPane input.

//Read three numbers from dialog boxes.
str = JOptionPane.showInputDialog(null, "First number");
a = Integer.parseInt(str); // Convert String to int.
str = JOptionPane.showInputDialog(null, "Second number");
b = Integer.parseInt(str);
str = JOptionPane.showInputDialog(null, "Third number");
c = Integer.parseInt(str);
average = (a + b + c) / 3;
//Display their average in a dialog box.
JOptionPane.showMessageDialog(null, "Average is " + average);
}
}


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