appsounddemo.java

java课件 java课件 java课件 java课件

// AppSoundDemo.java
import java.applet.*;
import java.net.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class AppSoundDemo extends JFrame implements ActionListener{
  AudioClip audio =null;
  JLabel label =new JLabel("File Name");
  JTextField field = new JTextField(20);
  JButton play =new JButton("Play"),
          stop =new JButton("Stop");
  String file=null;
  Container cp=null;
  JPanel p= new JPanel();
  
  public AppSoundDemo(){
    cp=getContentPane();
    p.add(label);
    p.add(field);
    p.add(play);     	
    p.add(stop);     	
    cp.add(p,BorderLayout.SOUTH);
    
  	play.addActionListener(this);
  	stop.addActionListener(this);
  	setSize(400,200);
  	setVisible(true);
  	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }
  
  public AudioClip getAudio(String file){
  	URL url = this.getClass().getResource(file);
  	return Applet.newAudioClip(url);
  }
  
  public void actionPerformed(ActionEvent e){
     if(e.getSource()==play){
       file = field.getText();
       audio = getAudio(file);
       audio.loop();	 
     }else{
       audio.stop();	 
     }
     
  }
  public static void main(String a[]){
     try{
 	  UIManager.setLookAndFeel(
"com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
     }catch(Exception e){}
         new AppSoundDemo();  
      }
}