noisybutton.java

learning java的源代码。书中每个实例都有相关的代码example。

//file: NoisyButton.java
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class NoisyButton extends JFrame {

  public NoisyButton(final AudioClip sound) {
    // set up the frame
    setTitle("NoisyButton");
    addWindowListener(new WindowAdapter(  ) {
      public void windowClosing(WindowEvent e) { System.exit(0); }
    });
    setSize(200, 200);
    setLocation(100, 100);
    // set up the button
    JButton button = new JButton("Woof!");
    button.addActionListener(new ActionListener(  ) {
      public void actionPerformed(ActionEvent e) { sound.play(  ); }
    });
    getContentPane(  ).setBackground(Color.pink);
    getContentPane().setLayout(new GridBagLayout(  ));
    getContentPane(  ).add(button);
    setVisible(true);
  }

  public static void main(String[] args) throws Exception {
    java.io.File file = new java.io.File("bark.aiff");
    AudioClip sound = Applet.newAudioClip(file.toURL(  ));
    new NoisyButton(sound);
  }
}