Thread: sir please help me how make sure addbutton, save button, or other

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.font.*;
import javax.swing.event.*;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;
 
import java.util.Calendar;
 
public class Cvs extends JFrame implements ActionListener {
 
	private static final long serialVersionUID = 1L;
 
 
	static private int slno,wayBillNo,pcs;
	static private double weight;
	static private String destination,consigneeName,receivedBy,statusSescription,refefence,relation;
	static private Calender sendingDate,statusDeliveryDate;
	private JPanel panel;
 
	static JButton  addButton,editButton,saveButton,exitButton;
	static JTextField label1,label2,label3,label4,label5;
	static JLabel first,second,thard,four,five;
 
	public Cvs() {
 
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setTitle("Works PLace");
		setSize(1350,750);
		setResizable(false);
		setLocationRelativeTo(null);
 
		panel = new JPanel();
		setSize(1350,750);
		panel.setLayout(null);
 
		JMenuBar bar = new JMenuBar();
		JMenu file = new JMenu("File");
		JMenuItem close = new JMenuItem("Close");
		JMenuItem save = new JMenuItem("Save");
		JMenuItem saveas = new JMenuItem("Saveas");
		JMenuItem print = new JMenuItem("Print");
 
		JMenu edit= new JMenu("Edit");
		JMenuItem copy=new JMenuItem("Copy");
		JMenuItem past=new JMenuItem("Past");
		JMenuItem delete=new JMenuItem("Delete");
		JMenuItem allselect=new JMenuItem("AllSelect");
 
		JMenu help = new JMenu("Help");
		JMenuItem about = new JMenuItem("About");
		JMenuItem shortcut = new JMenuItem("ShortCut");
 
		file.add(close);
		file.add(save);
		file.add(saveas);
		file.add(print);
 
		edit.add(copy);
		edit.add(past);
		edit.add(delete);
		edit.add(allselect);
 
		help.add(about);
		help.add(shortcut);
 
 
		first=new JLabel("Customers Address");
		first.setSize(200,170);
		first.setLocation(10,0);
 
		second=new JLabel("Issue Of Date");
		second.setSize(200,170);
		second.setLocation(450,0);
 
		thard=new JLabel("Inward AWB");
		thard.setSize(170, 298);
		thard.setLocation(10,0);
 
		four=new JLabel("Issue AWB");
		four.setSize(200,170);
		four.setLocation(450, 68);
 
		five=new JLabel("Reference");
		five.setSize(160, 450);
		five.setLocation(10,0);
 
		addButton = new JButton("Add");
		addButton.setSize(90,50);
		addButton.setLocation(15, 550);
 
	    editButton = new JButton("Edit");
	    editButton.setSize(90,50);
	    editButton.setLocation(110,550);
 
	    saveButton = new JButton("Save");
	    saveButton.setSize(90, 50);
	    saveButton.setLocation(205,550);
 
	    exitButton = new JButton("Exit");
	    exitButton.setSize(90,50);
	    exitButton.setLocation(300,550);
 
	    label1 = new JTextField();
	    label1.setSize(250,65);
	    label1.setLocation(150,70);
	    label1.setFont(new Font("Arial", Font.CENTER_BASELINE,12));
	    label1.setEditable(true);
 
	    label2 = new JTextField();
	    label2.setSize(150,30);
	    label2.setLocation(550,70);
	    label2.setFont(new Font("Arial", Font.BOLD,12));
	    label2.setEditable(true);
 
	    label3 = new JTextField();
	    label3.setSize(150,30);
	    label3.setLocation(150,140);
	    label3.setFont(new Font("Arial", Font.BOLD,24));
	    label3.setEditable(true);
 
	    label4 = new JTextField();
	    label4.setSize(150,30);
	    label4.setLocation(550,140);
	    label4.setFont(new Font("Arial", Font.BOLD,24));
	    label4.setEditable(true);
 
	    label5 = new JTextField();
	    label5.setSize(150,30);
	    label5.setLocation(150,210);
	    label5.setFont(new Font("Arial", Font.BOLD,24));
	    label5.setEditable(true);
 
	    panel.add(label1);
	    panel.add(label2);
	    panel.add(label3);
	    panel.add(label4);
	    panel.add(label5);
	    panel.add(addButton);
	    panel.add(editButton);
	    panel.add(saveButton);
	    panel.add(exitButton);
	    panel.add(first);
	    panel.add(second);
	    panel.add(thard);
	    panel.add(four);
	    panel.add(five);
 
	    add(panel);
 
 
	    addButton.addActionListener(this);
	    editButton.addActionListener(this);
	    saveButton.addActionListener(this);
	    exitButton.addActionListener(this);
 
 
		add(panel);
		bar.add(file);
		setJMenuBar(bar);
		bar.add(edit);
		bar.add(help);
 
	}
 
 
	@Override
	public void actionPerformed(ActionEvent e) {
 
 
			if(e.getSource()==exitButton){
				System.exit(0);
 
 
	}
}
}