?? frame1.java
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package ex09_04;import java.awt.*;import java.awt.event.*;import javax.swing.*;public class Frame1 extends JFrame { JPanel contentPane; BorderLayout borderLayout1 = new BorderLayout(); JButton jButton1 = new JButton(); JButton jButton2 = new JButton(); JButton jButton3 = new JButton(); JButton jButton5 = new JButton(); JButton jButton4 = new JButton(); /**Construct the frame*/ public Frame1() { enableEvents(AWTEvent.WINDOW_EVENT_MASK); try { jbInit(); } catch(Exception e) { e.printStackTrace(); } } /**Component initialization*/ private void jbInit() throws Exception { //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]"))); contentPane = (JPanel) this.getContentPane(); jButton1.setText("北/North"); contentPane.setLayout(borderLayout1); this.setSize(new Dimension(400, 300)); this.setTitle("Frame Title"); jButton2.setText("西/West"); jButton3.setText("中/Center"); jButton5.setText("東/East"); jButton4.setText("南/South"); contentPane.add(jButton1, BorderLayout.NORTH); contentPane.add(jButton2, BorderLayout.WEST); contentPane.add(jButton3, BorderLayout.CENTER); contentPane.add(jButton5, BorderLayout.EAST); contentPane.add(jButton4, BorderLayout.SOUTH); } /**Overridden so we can exit when window is closed*/ protected void processWindowEvent(WindowEvent e) { super.processWindowEvent(e); if (e.getID() == WindowEvent.WINDOW_CLOSING) { System.exit(0); } }}
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