I need help creating an applet that adds two integers. I have it layed out how I want to, but I dont know where to put the method or how to call it. I know I add some int x= and int y= somewhere, but not sure exactly.

Code:
/*    document segment
    filename:    ActionApplet
    author:        Walker
    date:            october.2010
*/

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class addNumbers extends JApplet implements ActionListener
{
    /* ----------------------------- declarations */

    // color objects
    Color white = new Color(255, 255, 255);
    Color black = new Color(0, 0, 0);



    // components
    JLabel inputLabelJLabel;
    JTextField inputLabelJTextField;

    JLabel outputLabelJLabel;
    JTextField outputLabelJTextField;
    
    JLabel finalLabelJLabel;
    JTextField finalLabelTextField;

    JButton enterJButton;
    JButton clearJButton;



    // variables
    String inputName;
    String outputName;
    


    public void init()
    {
        setLayout(null);
        setSize(400, 400);

        /* ------------------- initialization */
        inputLabelJLabel = new JLabel();
        inputLabelJLabel.setBounds(100, 50, 150, 20);
        inputLabelJLabel.setFont(new Font("Default", Font.PLAIN, 12));
        inputLabelJLabel.setText("Enter First Integer");
        inputLabelJLabel.setForeground(black);
        inputLabelJLabel.setHorizontalAlignment(JLabel.LEFT);
        add(inputLabelJLabel);

        inputLabelJTextField = new JTextField();
        inputLabelJTextField.setBounds(230, 50, 150, 20);
        inputLabelJTextField.setFont(new Font("Default", Font.PLAIN, 12));
        inputLabelJTextField.setHorizontalAlignment(JTextField.CENTER);
        inputLabelJTextField.setForeground(black);
        inputLabelJTextField.setBackground(white);
        inputLabelJTextField.setEditable(true);
        add(inputLabelJTextField);

        outputLabelJLabel = new JLabel();
        outputLabelJLabel.setBounds(100, 80, 150, 20);
        outputLabelJLabel.setFont(new Font("Default", Font.PLAIN, 12));
        outputLabelJLabel.setText("Enter Second Interger");
        outputLabelJLabel.setForeground(black);
        outputLabelJLabel.setHorizontalAlignment(JLabel.LEFT);
        add(outputLabelJLabel);

        outputLabelJTextField = new JTextField();
        outputLabelJTextField.setBounds(230, 80, 150, 20);
        outputLabelJTextField.setFont(new Font("Default", Font.PLAIN, 12));
        outputLabelJTextField.setHorizontalAlignment(JTextField.CENTER);
        outputLabelJTextField.setForeground(black);
        outputLabelJTextField.setBackground(white);
        outputLabelJTextField.setEditable(true);
        add(outputLabelJTextField);
        
        finalLabelJLabel = new JLabel();
        finalLabelJLabel.setBounds(100, 110, 150, 20);
        finalLabelJLabel.setFont(new Font("Default", Font.PLAIN, 12));
        finalLabelJLabel.setText("Addition Results");
        finalLabelJLabel.setForeground(black);
        finalLabelJLabel.setHorizontalAlignment(JLabel.LEFT);
        add(finalLabelJLabel);
        
        finalLabelTextField = new JTextField();
        finalLabelTextField.setBounds(230, 110, 150, 20);
        finalLabelTextField.setFont(new Font("Default", Font.PLAIN, 12));
        finalLabelTextField.setHorizontalAlignment(JTextField.CENTER);
        finalLabelTextField.setForeground(black);
        finalLabelTextField.setBackground(white);
        finalLabelTextField.setEditable(false);
        add(finalLabelTextField);


        enterJButton = new JButton();
        enterJButton.setBounds(100, 300, 100, 20);
        enterJButton.setFont(new Font("Default", Font.PLAIN, 12));
        enterJButton.setText("Enter");
        enterJButton.setForeground(black);
        enterJButton.setBackground(white);
        add(enterJButton);
        enterJButton.addActionListener(this);

        clearJButton = new JButton();
        clearJButton.setBounds(210, 300, 100, 20);
        clearJButton.setFont(new Font("Default", Font.PLAIN, 12));
        clearJButton.setText("Clear");
        clearJButton.setForeground(black);
        clearJButton.setBackground(white);
        add(clearJButton);
        clearJButton.addActionListener(this);
    
        

    }

    public void actionPerformed(ActionEvent event)
    {
        Object obj = event.getSource();

        /* the following lines of code are commented out,
           remove the // to un-comment after the components
           are initialized */

        if(obj == enterJButton)
        {
            getFirstMethod();
        }
        else if(obj == clearJButton)
        {
            clearAll();
        }
    }

    public void getFirstMethod()
    {

    }
    public void getOutput()
    {
        outputLabelJTextField.setText("" + inputName);
    }

    public void clearAll()
    {
        inputLabelJTextField.setText("");
        inputLabelJTextField.requestFocusInWindow();
        outputLabelJTextField.setText("");
    }
}