【实例简介】java电子钢琴 源码 实现了电脑键盘，88钢琴键。已经换肤，录音等功能。

【实例截图】

【核心代码】

package xwh.jPiano;

import java.awt.Dimension;

import java.awt.FlowLayout;

import java.awt.Toolkit;

import java.awt.event.KeyEvent;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.util.Properties;

import javax.swing.JFrame;

import javax.swing.UIManager;

import xwh.jPiano.util.ImgUtil;

public class MyJavaPiano extends JFrame{

private static final long serialVersionUID = 1L;

public static final float version=3.0f;//软件版本号,保留1位的小数

//窗口大小(最好为偶数，以免录屏软件出现提示信息。)

public static final int w = 850;

public static final int h = 486;

public static Win_KeySetting win_KeySet;//设置键弹出窗口

public static Panel_Controls controls;

public Menu menuBar;

public RecordFrame recordFrame;

public Panel_Keyboard keyboard;

public Panel_Piano piano;

//界面主题管理

public GUIProperties guiProps;

static{

try {

Properties props = new Properties();

props.put("logoString", "MyJavaPiano");

com.jtattoo.plaf.mcwin.McWinLookAndFeel.setCurrentTheme(props);

UIManager.setLookAndFeel("com.jtattoo.plaf.mcwin.McWinLookAndFeel");

} catch (Exception e1) {

e1.printStackTrace();

}

}

public static void main(String[] args) {

MyJavaPiano jPiano = new MyJavaPiano();

jPiano.setInitial_props();//初始化参数

DeviceManage.initial();//初始化device

jPiano.showView();//显示界面

}

/**

* 获取初始配置文件

*/

private void setInitial_props(){

ConfigManage.setInitial_props();//获取配置

guiProps = new GUIProperties(this);

String theme = ConfigManage.initial_props.get("theme");

String lookAndFeel = ConfigManage.initial_props.get("lookAndFeel");

if(!lookAndFeel.equals("")){

guiProps.updateLookAndFeel(lookAndFeel);

}

if(!theme.equals("")){

guiProps.updateTheme(theme);

}

}

/**

* 显示视图

*/

private void showView(){

//设置窗口参数

this.setTitle("MyJavaPiano_" version);

Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();

this.setLocation(screenSize.width/2 - w/2, screenSize.height/2 - h/2 50);

this.setSize(w, h);

this.setIconImage(ImgUtil.getImage("icons/music.png"));

this.setVisible(true);

this.setResizable(false);

setLayout(new FlowLayout());

//添加界面组件

keyboard = new Panel_Keyboard(this);

piano = new Panel_Piano();

controls = new Panel_Controls(this);

menuBar = new Menu(this);//菜单

recordFrame = new RecordFrame(this);//录音框

win_KeySet = new Win_KeySetting();//键设置对话框

this.add(controls);

this.add(keyboard);

this.add(piano);

this.setJMenuBar(menuBar);

this.validate();

//添加键盘监听器。

this.addKeyListener(new PianoKeyListener());

this.addKeyListener(new SpecialKeyListener());

//窗口事件监听

this.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) {

DeviceManage.close();

ConfigManage.saveInitial_props();//保存初始化信息

//让NumLock恢复。

if(!Toolkit.getDefaultToolkit().getLockingKeyState(KeyEvent.VK_NUM_LOCK)){

Toolkit.getDefaultToolkit().setLockingKeyState(KeyEvent.VK_NUM_LOCK,true);

}

System.exit(0);

}

});

}

}