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| 15. 1. 11. 嵌套类事件 |
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import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
public class ActionListenerTest2 {
public static void main(String[] args) {
JFrame.setDefaultLookAndFeelDecorated(true);
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JButton button = new JButton("Select File");
button.addActionListener(new MyActionListener());
frame.add(button);
frame.pack();
frame.setVisible(true);
}
}
class MyActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
JFileChooser fileChooser = new JFileChooser();
int returnVal = fileChooser.showOpenDialog(null);
if (returnVal == JFileChooser.APPROVE_OPTION) {
System.out.print(fileChooser.getSelectedFile().getName());
}
}
}
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