add.txt

java的一经典教程

// Program to input two integers from the keyboard 
// and display their sum

import javax.swing.JOptionPane; 

public class Add 
{
 
   public static void main(String[] args)
   {
		String numString1 = JOptionPane.showInputDialog(
		   "Enter your first integer");
		String numString2 = JOptionPane.showInputDialog(
		   "Enter your second integer");
 
		int firstNum = Integer.parseInt(numString1);
		int secondNum = Integer.parseInt(numString2);
 
		int result = firstNum + secondNum;

		JOptionPane.showMessageDialog(null,
		   "The sum of " + firstNum + " and " + secondNum + 			  
         " is " + result);

		System.exit(0);
	}
}