writing_classes_practice
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revision | Next revisionBoth sides next revision | ||
| writing_classes_practice [2022/10/01 13:58] – frchris | writing_classes_practice [2022/10/01 14:04] – frchris | ||
|---|---|---|---|
| Line 22: | Line 22: | ||
| import javax.swing.Timer; | import javax.swing.Timer; | ||
| - | public class ClockTester extends JPanel implements | + | public class ClockTester extends JPanel implements |
| { | { | ||
| public static int WIDTH=800; | public static int WIDTH=800; | ||
| Line 53: | Line 53: | ||
| window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); | window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); | ||
| window.getContentPane().add(app); | window.getContentPane().add(app); | ||
| - | window.addKeyListener(app); | ||
| - | // | ||
| window.setVisible(true); | window.setVisible(true); | ||
| Line 75: | Line 73: | ||
| } | } | ||
| - | // update is a workaround to cure Windows screen flicker problem | + | |
| - | public void update(Graphics g){ | + | |
| - | paint(g); | + | |
| - | } | + | |
| - | + | ||
| - | // These 3 methods need to be declares to implement the KeyListener Interface | + | |
| - | @Override | + | |
| - | public void keyTyped(KeyEvent e) {} | + | |
| - | + | ||
| - | @Override | + | |
| - | public void keyPressed(KeyEvent e) {} | + | |
| - | + | ||
| - | @Override | + | |
| - | public void keyReleased(KeyEvent e) {} | + | |
| - | @Override | + | |
| public void actionPerformed(ActionEvent e) { | public void actionPerformed(ActionEvent e) { | ||
writing_classes_practice.txt · Last modified: 2022/10/01 14:45 by frchris