// import statements import javax.swing.*; import java.awt.*; import java.awt.ev

Question

// import statements

import javax.swing.*;

import java.awt.*;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

// declare the class and make it a JApplet

public class JAddTwo extends JApplet implements

{

public JAddTwo() {

}

// declare the objects you need. This interface needs

// two JTextFields for the input values.

// Two labels for the input and two labels for the output

// Notice that one of the JLabels is empty

// It also needs a button and a GridLayout.

JLabel firstLabel = new JLabel("Enter a number : ");

JLabel secondLabel = new JLabel("Enter a second number : ");

JLabel thirdLabel = new JLabel("The Sum is ");

JButton pressMe = new JButton("Add");

JTextField number1 = new JTextField("", 10);

JTextField number2 = new JTextField("", 10);

JLabel quotient = new JLabel("");

// Declare the grid layout with 4 rows and 2 columns.

GridLayout grid = new GridLayout(4,2);

public void init( )

{

// declare your container

Container con = getContentPane( );

//set the layout

this.setSize(400, 300);

con.setLayout(grid);

// add the objects to the container in the order

// in which you wish them to appear

con.add(firstLabel);

con.add(number1);

con.add(secondLabel);

con.add(number2);

pressMe.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {

try {

thirdLabel.setText("The Sum is "+(Integer.parseInt(number1.getText())+Integer.parseInt(number2.getText())));

} catch (NumberFormatException e) {

thirdLabel.setText("Invalid number(s)");

}

}

});

con.add(pressMe);

con.add(thirdLabel);

con.add(quotient);

}

}

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