Notes

package shinehi;
import javax.swing.*;

import java.awt.event.*;
public class swing1 {

static boolean visibility = true;
static boolean disable = false;

public static void main(String[] args) {
// TODO Auto-generated method stub
JFrame frame = new JFrame();

JLabel lbl = new JLabel("Hello Swing UI");
lbl.setBounds(150, 20, 100, 40);

JButton btn = new JButton("Click me");
btn.setBounds(100, 100, 90, 40);

JButton btn1 = new JButton("Press me");
btn1.setBounds(200, 100, 90, 40);

JButton btn2 = new JButton("Delete");
btn2.setBounds(100, 200, 90, 40);

JButton btn3 = new JButton("hide/show");
btn3.setBounds(200, 200, 90, 40);

JButton btn4 = new JButton("Disable");
btn4.setBounds(100, 300, 90, 40);

JButton btn5 = new JButton("Editable");
btn5.setBounds(200, 300, 90, 40);

JTextField txt = new JTextField();
txt.setBounds(100, 55, 200, 30);



frame.add(lbl);
frame.add(btn);
frame.add(btn1);
frame.add(txt);
frame.add(btn2);
frame.add(btn3);
frame.add(btn4);
frame.add(btn5);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(null);
frame.setSize(500, 500);
frame.setVisible(true);

btn.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
lbl.setText(btn.getText());
}});

btn1.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
lbl.setText(btn1.getText());
}
});

btn2.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
lbl.setText(btn2.getText());
txt.setText(null);


}
});

btn3.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if (visibility) {
visibility = false;
}
else {
visibility = true;
}
lbl.setVisible(visibility);
}
});
txt.addKeyListener(new KeyListener() {

@Override
public void keyTyped(KeyEvent e) {
// TODO Auto-generated method stub

}

@Override
public void keyPressed(KeyEvent e) {
// TODO Auto-generated method stub

}

@Override
public void keyReleased(KeyEvent e) {
// TODO Auto-generated method stub
lbl.setText(txt.getText());
}});
btn4.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub

if(txt.isEnabled()) {
txt.setEnabled(false);
}
else {
txt.setEnabled(true);
}

}});

btn5.addActionListener(new ActionListener() {

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if(txt.isEditable()) {
txt.setEditable(false);
}

else {
txt.setEditable(true);
}
}});


}

}