
how to set jframe form screen size any resolutions fit to full screen?

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class LoginDemo extends JFrame{
JButton SUBMIT;
JLabel label1,label2;
final JTextField text1,text2;
LoginDemo(){
setTitle("Login Form");
setLayout(null);
label1 = new JLabel();
label1.setText("Username:");
text1 = new JTextField(15);
label2 = new JLabel();
label2.setText("Password:");
text2 = new JPasswordField(15);
SUBMIT=new JButton("SUBMIT");
label1.setBounds(350,100,100,20);
text1.setBounds(450,100,200,20);
label2.setBounds(350,130,100,20);
text2.setBounds(450,130,200,20);
SUBMIT.setBounds(450,160,100,20);
add(label1);
add(text1);
add(label2);
add(text2);
add(SUBMIT);
setVisible(true);
setSize(1024,768);
SUBMIT.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
}
});
}
public static void main(String arg[]){
new LoginDemo();
}
}
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