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POHow to solve "Keystrokes is not abstract and does not override ab. method"
 

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  1. POHow to solve "Keystrokes is not abstract and does not override ab. method"
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    <p>I am a learning Java programming and am trying to compile the below code from a book. When I try to compile the code I get this error </p> <pre><code>Keystrokes is not abstract and does not override abstract method keyTyped (java.awt.event.KeyEvent) in java.awt.event.KeyListener. </code></pre> <p>Also, I believe this is unrelated but the book also told me to add this section of code to the source code(somewhere?):</p> <pre><code>pnl.add ( field) ; pnl.add (txtArea); </code></pre> <p>When I do I get an Identifier "Expected Error".</p> <p>The program code:</p> <pre><code>import javax.swing.*; import java.awt.event.*; class Keystrokes extends JFrame implements KeyListener { JPanel pnl = new JPanel(); public static void main (String[ ] args){ Keystrokes gui = new Keystrokes(); } JTextField field = new JTextField ( 38 ); JTextArea txtArea = new JTextArea (5, 38); public Keystrokes() { super( "Swing window"); setSize( 500,200); setDefaultCloseOperation( EXIT_ON_CLOSE ); add(pnl); field.addKeyListener (this ); setVisible( true ); } public void keyPressed(KeyEvent event ) { txtArea.setText("Key Pressed"); throw new UnsupportedOperationException("Not supported yet."); } public void KeyTyped (KeyEvent event ) { throw new UnsupportedOperationException("Not supported yet."); txtArea.append("\nCharacter : " + event.getKeyChar() ); } public void keyReleased ( KeyEvent event) { int keyCode = event.getKeyCode(); txtArea.append("\nKey Code : " + event.getKeyCode() ); textArea.append("\nKey Text : " + event.getKeyText(keyCode)); } } </code></pre>
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    1. USAndrew Thompson
    1. USEdmund Doyle
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    1. COPlease don't include more than one blank line of white-space at a time. And for the sake of people reading it, as well as debugging, use a consistent and logical indent for code blocks.
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      1. POHow to solve "Keystrokes is not abstract and does not override ab. method"
      1. USAndrew Thompson
 

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