buttonexample.java

nanjing university cs 的java课件。 对新手很有用。付课件中源码。

/**
 * 在此处插入类型说明。
 * 创建日期：(2000-12-20 15:09:30)
 * @author：
 */
class ButtonExample extends java.awt.Frame {

class IvjEventHandler implements java.awt.event.ActionListener, java.awt.event.WindowListener {
		public void actionPerformed(java.awt.event.ActionEvent e) {
			if (e.getSource() == ButtonExample.this.getButton1()) 
				connEtoC2();
			if (e.getSource() == ButtonExample.this.getButton3()) 
				connEtoC3();
		};
		public void windowActivated(java.awt.event.WindowEvent e) {};
		public void windowClosed(java.awt.event.WindowEvent e) {};
		public void windowClosing(java.awt.event.WindowEvent e) {
			if (e.getSource() == ButtonExample.this) 
				connEtoC1(e);
		};
		public void windowDeactivated(java.awt.event.WindowEvent e) {};
		public void windowDeiconified(java.awt.event.WindowEvent e) {};
		public void windowIconified(java.awt.event.WindowEvent e) {};
		public void windowOpened(java.awt.event.WindowEvent e) {};
	};
	private java.awt.Button ivjButton1 = null;
	private java.awt.Button ivjButton2 = null;
	private java.awt.Button ivjButton3 = null;
	private java.awt.Panel ivjContentsPane = null;
	IvjEventHandler ivjEventHandler = new IvjEventHandler();
/**
 * ButtonExample 构造子注解。
 */
public ButtonExample() {
	super();
	initialize();
}
/**
 * ButtonExample 构造子注解。
 * @param title java.lang.String
 */
public ButtonExample(String title) {
	super(title);
}
/**
 * Comment
 */
public void button1_ActionEvents() {
	ivjButton1.disable();
	ivjButton2.disable();
	ivjButton3.enable();
	return;
}
/**
 * Comment
 */
public void button3_ActionEvents() {
	ivjButton1.enable();
	ivjButton2.enable();
	ivjButton3.disable();
	return;
}
/**
 * connEtoC1:  (ButtonExample.window.windowClosing(java.awt.event.WindowEvent) --> ButtonExample.dispose()V)
 * @param arg1 java.awt.event.WindowEvent
 */
/* 警告：此方法将重新生成。 */
private void connEtoC1(java.awt.event.WindowEvent arg1) {
	try {
		// user code begin {1}
		// user code end
		this.dispose();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC2:  (Button1.action. --> ButtonExample.button1_ActionEvents()V)
 */
/* 警告：此方法将重新生成。 */
private void connEtoC2() {
	try {
		// user code begin {1}
		// user code end
		this.button1_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * connEtoC3:  (Button3.action. --> ButtonExample.button3_ActionEvents()V)
 */
/* 警告：此方法将重新生成。 */
private void connEtoC3() {
	try {
		// user code begin {1}
		// user code end
		this.button3_ActionEvents();
		// user code begin {2}
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {3}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * 返回 Button1 特性值。
 * @return java.awt.Button
 */
/* 警告：此方法将重新生成。 */
private java.awt.Button getButton1() {
	if (ivjButton1 == null) {
		try {
			ivjButton1 = new java.awt.Button();
			ivjButton1.setName("Button1");
			ivjButton1.setBounds(15, 99, 129, 20);
			ivjButton1.setLabel("Disable middle button");
			// user code begin {1}
			// user code end
		} catch (java.lang.Throwable ivjExc) {
			// user code begin {2}
			// user code end
			handleException(ivjExc);
		}
	}
	return ivjButton1;
}
/**
 * 返回 Button2 特性值。
 * @return java.awt.Button
 */
/* 警告：此方法将重新生成。 */
private java.awt.Button getButton2() {
	if (ivjButton2 == null) {
		try {
			ivjButton2 = new java.awt.Button();
			ivjButton2.setName("Button2");
			ivjButton2.setBounds(170, 99, 81, 20);
			ivjButton2.setLabel("Middle button");
			// user code begin {1}
			// user code end
		} catch (java.lang.Throwable ivjExc) {
			// user code begin {2}
			// user code end
			handleException(ivjExc);
		}
	}
	return ivjButton2;
}
/**
 * 返回 Button3 特性值。
 * @return java.awt.Button
 */
/* 警告：此方法将重新生成。 */
private java.awt.Button getButton3() {
	if (ivjButton3 == null) {
		try {
			ivjButton3 = new java.awt.Button();
			ivjButton3.setName("Button3");
			ivjButton3.setBounds(275, 99, 136, 20);
			ivjButton3.setLabel("Enable middle button");
			// user code begin {1}
			// user code end
		} catch (java.lang.Throwable ivjExc) {
			// user code begin {2}
			// user code end
			handleException(ivjExc);
		}
	}
	return ivjButton3;
}
/**
 * 返回 ContentsPane 特性值。
 * @return java.awt.Panel
 */
/* 警告：此方法将重新生成。 */
private java.awt.Panel getContentsPane() {
	if (ivjContentsPane == null) {
		try {
			ivjContentsPane = new java.awt.Panel();
			ivjContentsPane.setName("ContentsPane");
			ivjContentsPane.setLayout(null);
			getContentsPane().add(getButton1(), getButton1().getName());
			getContentsPane().add(getButton2(), getButton2().getName());
			getContentsPane().add(getButton3(), getButton3().getName());
			// user code begin {1}
			// user code end
		} catch (java.lang.Throwable ivjExc) {
			// user code begin {2}
			// user code end
			handleException(ivjExc);
		}
	}
	return ivjContentsPane;
}
/**
 * 每当部件抛出异常时被调用
 * @param exception java.lang.Throwable
 */
private void handleException(java.lang.Throwable exception) {

	/* 除去下列各行的注释，以将未捕捉到的异常打印至 stdout。 */
	// System.out.println("--------- 未捕捉到的异常 ---------");
	// exception.printStackTrace(System.out);
}
/**
 * 初始化连接
 * @exception java.lang.Exception 异常说明。
 */
/* 警告：此方法将重新生成。 */
private void initConnections() throws java.lang.Exception {
	// user code begin {1}
	// user code end
	this.addWindowListener(ivjEventHandler);
	getButton1().addActionListener(ivjEventHandler);
	getButton3().addActionListener(ivjEventHandler);
}
/**
 * 初始化类。
 */
/* 警告：此方法将重新生成。 */
private void initialize() {
	try {
		// user code begin {1}
		// user code end
		setName("ButtonExample");
		setLayout(new java.awt.BorderLayout());
		setSize(426, 240);
		add(getContentsPane(), "Center");
		initConnections();
	} catch (java.lang.Throwable ivjExc) {
		handleException(ivjExc);
	}
	// user code begin {2}
	// user code end
}
/**
 * 主入口点 - 当部件作为应用程序运行时，启动这个部件。
 * @param args java.lang.String[]
 */
public static void main(java.lang.String[] args) {
	try {
		ButtonExample aButtonExample;
		aButtonExample = new ButtonExample();
		aButtonExample.addWindowListener(new java.awt.event.WindowAdapter() {
			public void windowClosing(java.awt.event.WindowEvent e) {
				System.exit(0);
			};
		});
		aButtonExample.setVisible(true);
	} catch (Throwable exception) {
		System.err.println("java.awt.Frame 的 main() 中发生异常");
		exception.printStackTrace(System.out);
	}
}
}