Help needed in activating and deactivating a window

Question

In my GUI, I have created a window, that is having one textfield, one label and 2 buttons named "Enabled" & "Disabled" .
MY requirement is: After execution of the window when I will click "Disabled" button, the window should be deactivated, even I can't type in the textfield and then clicking the " Enabled" button the window should be activated, then I can access the textfield.
Here bellow,I have written the code for visibility of the window, but I haven't written code for the action to be performed by the 2 buttons.
Can anyof you please write me the updated code satisfying my requirement, sothat I'll proceed further.
Regards.
MY CODE:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Test7 extends JFrame
     public Test7()
          Container con=getContentPane();
          addWindowListener(new WindowAdapter(){
               public void windowClosing(WindowEvent e)
                    System.exit(0);
          JPanel p1=new JPanel();
          p1.setBackground(Color.white);
          JPanel p2=new JPanel();
          JPanel p3=new JPanel();
          JTextField txt=new JTextField(10);
          JLabel l=new JLabel("hello world");;
          JButton b1=new JButton("Enable");
          b1.addFocusListener(new FocusAdapter(){
               public void focusGained(FocusEvent evt)
          System.out.println("gained");
     // The component gained the focus
          JButton b2=new JButton("Disable");
          b2.addFocusListener(new FocusAdapter(){
               public void focusLost(FocusEvent evt)
          System.out.println("lost");
     // The component lost the focus
          p1.add(txt);
          p2.add(l);
          p3.add(b1);
          p3.add(b2);
          con.add(p1,"North");
          con.add(p2,"Center");
          con.add(p3,"South");
          setSize(300,200);
          show();
     public static void main(String arg[])
          new Test7();

Answer 1

try modifying code for the button listeners
JButton b1=new JButton("Enable");
b1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt)
System.out.println("gained");
// The component gained the focus
txt.setEnabled(true);
JButton b2=new JButton("Disable");
b2.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent evt)
System.out.println("lost");
txt.setEnabled(false);
// The component lost the focus
Hope this helps