Help straightning out code for an array of buttons

[System_Error]

I want to create an array of 9 buttons (btn[3][3]) and then check to see if the button at index [2][2] was clicked. I just cant seem to get the code to work. Any help is appreciated.

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

public class ButtonArray extends JFrame implements ActionListener {
  JButton btn[][];

  public ButtonArray() {
	Container pane = getContentPane();
	FlowLayout flo = new FlowLayout();
	setSize(300,300);
	setTitle("Array of Buttons");
	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

	//here I want to create 9 buttons and add an actionListener to them and add them to the pane

	for (int x=0; x<3; x++) {
		for (int y=0; y<3; y++) {
			btn[x][y] = new JButton();
			btn[x][y].addActionListener(this);
			pane.add(btn[x][y]);
		}
	}

        pane.setLayout(flo);
	setContentPane(pane);
	setVisible(true);
   }


   public void actionPerformed(ActionEvent e) {

	//I would like to check to see if the button that was clicked is at [2][2]
	//If so just a simple println method

	
	for (int x=0; x<3; x++) {
	    for (int y=0; y<3; y++) {
		if (e.getSource == btn[2][2]) {
			System.out.println("Button at index[2][2] was clicked");
		}
	    }
	}
   }
 
   public static void main(String[] args) {
		ButtonArray ba = new ButtonArray();
   }
}

[Dillinger4]

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

public class ButtonArray extends JFrame implements ActionListener {
  JButton btn[][];

  public ButtonArray() {
   btn = new JButton[3][3]; 
   JPanel jp = new JPanel(); 
   setSize(300,150);
   setTitle("Array of Buttons");
   setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

   for(int x=0; x<3; x++) {
    for(int y=0; y<3; y++) {
     btn[x][y] = new JButton("JButton");
	btn[x][y].addActionListener(this);
         jp.add(btn[x][y]);
    }
   }
    
    setContentPane(jp);
    setVisible(true);
  }

  public void actionPerformed(ActionEvent e) {
   for(int x=0; x<3; x++) {
    for(int y=0; y<3; y++) {
     if(e.getSource() == btn[2][2]) {
	System.out.println("Button at index[2][2] was clicked");
    }
   }
  }
 }
 
  public static void main(String[] args) {
   ButtonArray ba = new ButtonArray();
  }
 }

[System_Error]

Thanks. Works perfectly.