How to write AWT in java

Write code:

import java.awt.*;

public class AWT001 extends Frame{

       private Button bt1 = new Button("Confirm");

       private Button bt2 = new Button("Cancel1");

       private Button bt3 = new Button("Cancel2");

      

       private BorderLayout bl = new BorderLayout();

       private Panel p1 = new Panel();

       private Panel p2 = new Panel();

       public AWT001(String title){

              /*Initialization*/

              super(title);

             

              setSize(400, 300);

             

              Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();

              Dimension size = getSize();

             

              int xpos = screen.width / 2 - size.width / 2;

              int ypos = screen.height / 2 - size.height / 2;

             

              setLocation(xpos,ypos);

              setVisible(true);

             

              /*Add Component*/

              init();

              /*Event handling*/

              start();

       }

      

       public void init(){

              this.setLayout(bl);

              p1.setLayout(new GridLayout(1,2));

              p1.add(bt1);

              p2.setLayout(new GridLayout(2,1));

              p2.add(bt2);

              p2.add(bt3);

              p1.add(p2);

              this.add(BorderLayout.SOUTH,p1);

       }

       public void start(){

             

       }

       public static void main(String[] args) {

              AWT001 obj = new AWT001("Title!!!!");

       }

}