java实验报告音频播放器.doc

Java考核 课程名称 Java技术及其应用 题目名称 图形界面音频播放器 学生学院 计算机学院 专业班级 学 号 学生姓名 指导教师 2013 年 11 月 27 日1. 题目：编写一个图形界面多媒体应用程序，实现播放音频文件的功能。2. 运行环境：Eclipse3. 实现功能：可在列表中选择自己想听的歌曲，双击歌曲名即开始播放，中途可按stopPlay键停止播放，按playOnce键重新播放，按playLoop键循环播放当前歌曲。能在Applet窗口底部的状态位置显示Applet当前状态。4. 源代码：package hjh;import java.applet.Applet;import java.applet.AudioClip;import java.awt.Button;import java.awt.Color;import java.awt.Event;import java.awt.Graphics;import java.awt.GridLayout;import java.awt.Image;import java.awt.Label;import java.awt.List;import java.awt.Panel;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;public class MySound extends Applet implements ActionListener/* * */private static final long serialVersionUID = 1L;AudioClip current = null;Image image1, image2;Button playOnce, stopPlay, playLoop;Panel panel, panel2;Label label;List list1, list2;String str;public void init()setBackground(Color.PINK);setSize(400, 400);setLayout(null);panel = new Panel();panel2 = new Panel();panel.setLayout(new GridLayout(1, 4);panel.setSize(400, 30);panel.setBackground(Color.RED);panel2.setLayout(new GridLayout(1, 2);panel2.setBounds(0, 270, 400, 140);add(panel);add(panel2);list1 = new List();list2 = new List();list1.addActionListener(this);list2.addActionListener(this);list1.setBackground(Color.PINK);list2.setBackground(Color.PINK);list1.add( 林俊杰 - 裂缝中的阳光);list1.add( 林俊杰 - 修炼爱情);list1.add( 林俊杰 - 因你而在);list1.add( 林俊杰 - 零度的亲吻);list2.add( 孙燕姿 - 天黑黑);list2.add( 孙燕姿 - 开始懂了);list2.add( 孙燕姿 - 心愿);list2.add( 孙燕姿 - 遇见);panel2.add(list1);panel2.add(list2);label = new Label(PlayMethod:);panel.add(label);playOnce = new Button(playOnce);stopPlay = new Button(stopPlay);playLoop = new Button(playLoop);panel.add(playOnce);panel.add(stopPlay);panel.add(playLoop);image1 = getImage(getCodeBase(),林俊杰.jpg);image2 = getImage(getCodeBase(),孙燕姿.jpg);repaint();Overridepublic void paint(Graphics g)/ TODO Auto-generated method stubg.drawImage(image1, 30,50,150,170,this);g.drawImage(image2, 220,50,150,170,this);g.drawString(林俊杰 - 单曲, 65 , 250);g.drawString(孙燕姿 - 单曲, 265, 250);Overridepublic boolean action(Event evt, Object what)/ TODO Auto-generated method stubif(evt.target = playOnce)if(current != null)current.play();showStatus(Playing Sound + str + .);elseshowStatus(Playing Sound + current + not loaded yet.);return true;else if(evt.target = stopPlay)if(current != null)current.stop();showStatus(Stop playing Sound + str + .);elseshowStatus(Playing Sound + current + not palyed now.);return true;else if(evt.target = playLoop)if(current != null)current.loop();showStatus(Loop playing Sound + str + .);elseshowStatus(Playing Sound + current + not palyed now.);return true;return false;Overridepublic void actionPerformed(ActionEvent e)/ TODO Auto-generated method stubif(current != null)current.stop();showStatus(Stop playing Sound + str + .);current = null;str = e.getActionCommand();current = getAudioClip(getCodeBase(), str + .wav);current.play();showStatus(Playing Sou