有人可以看看这段代码并告诉我我做错了什么吗?图像根本没有显示。它们在同一个包中。
谢谢
public class MWindow31Pic extends JFrame implements ActionListener{
private JPanel contPane = (JPanel) this.getContentPane();
private JButton button = new JButton(new ImageIcon("open.jpg"));
boolean clicked = false;
public MWindow31Pic(String title){
super(title);
this.build();
}
public void actionPerformed(ActionEvent event){
if (! clicked) {
button.setIcon(new ImageIcon("close.jpg"));
//button.setText("You clicked ME!!!!");
clicked = true;
}
else{
button.setIcon(new ImageIcon("open.jpg"));
//button.setText("Click Me");
clicked = false;
}
}
public void build(){
// adding JComponents
contPane.add(button);
button.addActionListener(this);
// JFrame settings
this.setResizable(false);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
this.setSize(240,188);
this.setVisible(true);
}
}