Problem wth ActionListener Interface

[Ammy Singh]

Greetings I am trying to apply ActionListener Interface to a small swing based application. I have a cancel button, all i want is that when cancel button is hit the application should exit. i have used

public void actionPerformed(ActionEvent e)
	{
		if((e.getSource()) == cancel)
		{
			System.exit(0);
		}
	}

Method for making the cancel button affective.

But i am getting the following error:

C:\Users\Raman\Documents\SendMail.java:5: cannot find symbol
symbol: class ActionListener
public class SendMail extends JFrame implements ActionListener
                                                ^
C:\Users\Raman\Documents\SendMail.java:42: addActionListener(java.awt.event.ActionListener) in javax.swing.AbstractButton cannot be applied to (SendMail)
		send.addActionListener(this);
                    ^
C:\Users\Raman\Documents\SendMail.java:47: addActionListener(java.awt.event.ActionListener) in javax.swing.AbstractButton cannot be applied to (SendMail)
		cancel.addActionListener(this);
                      ^
3 errors

here is the complete code

import java.awt.*;
import java.awt.event.ActionEvent;
import javax.swing.*;

public class SendMail extends JFrame implements ActionListener
{
	JLabel fromL, toL, subL, smtpL;
	JTextField fromT, toT, subT, smtpT, msg, output;
	JButton send, cancel;
	JScrollPane pane;


	public SendMail()
	{
		setTitle("Send Mail Example");
		getContentPane().setLayout(null);
		setSize(700, 400);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		//setVisible(true);
		fromL = new JLabel("From:");
		getContentPane().add(fromL);
		fromL.setBounds(12,12,36,12);

		toL = new JLabel("To:");
		getContentPane().add(toL);
		toL.setBounds(12,48,36,12);

		fromT = new JTextField("");
		getContentPane().add(fromT);
		fromT.setBounds(100,12,200,20);

		toT = new JTextField("");
		getContentPane().add(toT);
		toT.setBounds(100,48,200,20);

		msg = new JTextField("");
		getContentPane().add(msg);
		msg.setBounds(12,150,290,90);

		send = new JButton("Send");
		getContentPane().add(send);
		send.addActionListener(this);
		send.setBounds(80,260,70,20);

		cancel = new JButton("Cancel");
		getContentPane().add(cancel);
		cancel.addActionListener(this);
		cancel.setBounds(180,260,80,20);

	}


	public void actionPerformed(ActionEvent e)
	{
		if((e.getSource()) == cancel)
		{
			System.exit(0);
		}
	}

	public static void main(String[] args)
	{
		SendMail sendmail = new SendMail();
		sendmail.setVisible(true);

	}


}

Please help

[Tom Reilly]

I think you need to

import java.awt.event.ActionListener;

[Ammy Singh]

Thanks Tom Reilly