Handle Key event-keyboard-Get typed Character and its code

Handle Key event-keyboard-Get typed Character and its code in a text area.
java code

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;

public class HandleKeysEvent extends Applet 
                          implements KeyListener,
	ActionListener {
    TextArea textAreaObj;
    TextField typingAreaObj;
    String lineSeparator;

    public void init() {
	Button btnObj = new Button("Empty");
	btnObj.addActionListener(this);

	typingAreaObj = new TextField(20);
	typingAreaObj.addKeyListener(this);

	textAreaObj = new TextArea(5, 20);
	textAreaObj.setEditable(false);
    lineSeparator = System.getProperty("line.separator");
	setLayout(new BorderLayout());
	add("Center", textAreaObj);
	add("North", btnObj);
	add("South", typingAreaObj);
	

	
    }

    /** Handle key typed event  */
    public void keyTyped(KeyEvent e) {
	sendToTextArea(e, "KEY TYPED: ");
    }

    /** Handle   key pressed event  */
    public void keyPressed(KeyEvent e) {
	sendToTextArea(e, "KEY PRESSED: ");
    }

    /** Handle  key released event */
    public void keyReleased(KeyEvent e) {
	sendToTextArea(e, "KEY RELEASED: ");
    }

    /** Handle the button click. */
    public void actionPerformed(ActionEvent e) {
	//Empty the text area.
	textAreaObj.setText("");
	typingAreaObj.setText("");

	//Request focus to typingArea.
	typingAreaObj.requestFocus();
    }

     protected void sendToTextArea(KeyEvent e, String s){
	String charString, keyCodeString, modString, tmpString;

	char enteredChar = e.getKeyChar();
	int keyCode = e.getKeyCode();
	int modifiers = e.getModifiers();

	  // check if it is ISO control character
	if (Character.isISOControl(enteredChar)) {
	    charString = "Character = (an unprintable control character)";
	} else {
	    charString = "Character = '" + enteredChar + "'";
	}

	keyCodeString = "key code = " + keyCode
			+ " ("
			+ KeyEvent.getKeyText(keyCode)
			+ ")";

	modString = "modifiers = " + modifiers;
	tmpString = KeyEvent.getKeyModifiersText(modifiers);
	if (tmpString.length() > 0) {
	    modString += " (" + tmpString + ")";
	} else {
	    modString += " (no modifiers)";
	}

	textAreaObj.append(s
                           + lineSeparator + "    "
	                   + charString 
	                   + lineSeparator + "    "
		           + keyCodeString
	                   + lineSeparator + "    "
		           + modString
		           + lineSeparator);
    }
}