This post contains a java code that adds two input entered by the user and show the result.
import java.awt.JobAttributes;
import javax.swing.JOptionPane;
public class Addition {
public static void main(String args[]) {
String number1, number2;
Integer num1,num2,sum;
number1 = JOptionPane.showInputDialog("Enter first number:");
number2 = JOptionPane.showInputDialog("Enter second number:");
...
