4
有人可以看看這段代碼,並告訴我我做錯了什麼?圖像根本不顯示。他們在同一個包裏。JButton內的圖像不顯示
感謝
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);
}
}
它得到的是包含您的罐子裏(或外班的情況下還沒有打包的)圖像文件的本地URL。只要嘗試將該URL輸出爲字符串並查看它給您的內容,例如:System.out.println(MWindow31Pic.class.getResource(「close.jpg」)); – 2012-08-17 10:07:07
瞭解。謝謝 – 2012-08-17 10:09:42