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copied!<p>Referring to JavaDoc, <code>KeyListener</code> methods have the following syntax: </p> <p><code>void keyPressed(KeyEvent e)</code><br> <code>void keyReleased(KeyEvent e)</code><br> <code>void keyTyped(KeyEvent e)</code> </p> <p>Going over your code, your syntax are:<br> <code>public void keyPressed(int i, char c)</code><br> <code>public void keyReleased(int i, char c)</code> </p> <p>This will be flagged as an error at compilation time. </p> <p>Also, you should, <em>ideally</em>, create a separate handler class for your events.<br> <code>TextField</code> is the object that will <em>generate</em> the event and there must be someone to listen to it. You need to specify who will listen by calling the <code>addKeyListener()</code> method and passing the handler class' object as an argument. </p> <p><em>PS: Switch to Swing. Use JTextField instead</em></p> <p>Refer: <a href="http://docs.oracle.com/javase/6/docs/api/java/awt/event/KeyListener.html" rel="nofollow noreferrer">http://docs.oracle.com/javase/6/docs/api/java/awt/event/KeyListener.html</a><br> Tutorial: <a href="http://docs.oracle.com/javase/tutorial/uiswing/events/keylistener.html" rel="nofollow noreferrer">http://docs.oracle.com/javase/tutorial/uiswing/events/keylistener.html</a><br> Event delegation model: <a href="http://wiki.answers.com/Q/What_is_delegation_event_model_in_java" rel="nofollow noreferrer">http://wiki.answers.com/Q/What_is_delegation_event_model_in_java</a><br> Advantages of swing: <a href="https://softwareengineering.stackexchange.com/questions/112482/advantage-of-using-swing-over-awt">https://softwareengineering.stackexchange.com/questions/112482/advantage-of-using-swing-over-awt</a></p>

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