sourcecode.txt

张孝祥的《Java就业培训教程》书中源代码

		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}
}
《Java就业培训教程》P263源码
程序清单：Serializatioan.java
import java.io.*;
public class serialization 
{
    public static void main(String args[]) 
throws IOException,ClassNotFoundException
    {
        Student stu=new Student(19,"dintdding",50,"huaxue");
        FileOutputStream fos=new FileOutputStream("mytext.txt");
        ObjectOutputStream os=new ObjectOutputStream(fos);
        
        try
        {
            os.writeObject(stu);
            os.close();
        }catch(IOException e)
{
	System.out.println(e.getMessage());
}
        stu=null;
        FileInputStream fi=new FileInputStream("mytext.txt");
        ObjectInputStream si=new ObjectInputStream(fi);
        try
        {
            stu=(Student)si.readObject();
            si.close();
        }catch(IOException e)
{
	System.out.println(e.getMessage());
}
        System.out.println("ID is:"+stu.id);
       System.out.println("name is:"+stu.name);
       System.out.println("age is:"+stu.age);
       System.out.println("department is:"+stu.department);
    }
    
}
class Student implements Serializable
{
    int id;
    String name;
    int age;
    String department;
    public Student(int id,String name,int age,String department)
    {
        this.id=id;
        this.name=name;
        this.age=age;
        this.department=department;
    }
}
《Java就业培训教程》P275源码
import java.io.*;
public class CharDecoder
{
	public static void main(String [] args) throws Exception
	{
		System.getProperties().put("file.encoding","iso8859-1");
		System.out.println("please enter a Chinese String");
		byte [] buf=new byte[1024];
		int ch=0;
		int pos=0;
		String strInfo=null;
		while(true)
		{            
		ch =System.in.read();
		System.out.println(Integer.toHexString(ch));
		switch(ch)
		{
			case '\r':
				break;
			case '\n':
				strInfo= new String(buf,0,pos);
				for(int i=0;i<strInfo.length();i++)
				{
					System.out.println(Integer.toHexString
						((int)strInfo.charAt(i)));
				}
				System.out.println(strInfo);
				for(int i=0;i<pos;i++)
				System.out.write(buf[i]);
				System.out.println();//想想为什么要这一句
				return;
			default:
				buf[pos++]=(byte)ch;
		}
		}			
	}
}
《Java就业培训教程》P282源码
程序清单: TestInOut.java
import java.io.*;
public class TestInOut implements Runnable
{
	Process p=null; 
	public TestInOut()
	{
        	try
		{
			p=Runtime.getRuntime().exec("java MyTest");
			new Thread(this).start();
		}
	    	catch(Exception e)
	    	{
	     		System.out.println(e.getMessage());
	    	}		
	}

	public void send()
	{
        	try
		{

        	 	OutputStream ops=p.getOutputStream(); 
         		while(true)
         		{
       				ops.write("help\r\n".getBytes());
     			}
	   	}
	    	catch(Exception e)
	    	{
	     		System.out.println(e.getMessage());
	    	}
	}
	public static void main(String [] args)
	{
		TestInOut tio=new TestInOut ();
		tio.send();

	}
	public void run()
	{
		try
		{
			InputStream in = p.getInputStream();
       			BufferedReader bfr=new BufferedReader(
       				new InputStreamReader(in));
			while(true)
			{
				String strLine=bfr.readLine();
       				System.out.println(strLine);
    			}
   		}
    		catch(Exception e)
    		{
    			System.out.println(e.getMessage());
    		}
	}
}

class MyTest
{
	public static void main(String [] args) throws IOException
	{
		while(true)
		{
			System.out.println("hi:"+
			new BufferedReader(new InputStreamReader(System.in)).readLine());
		}
	}
}

 
   
--------------------------------------------------------------------------------
 
《Java就业培训教程》 作者：张孝祥 书中源码 
《Java就业培训教程》P290源码
程序清单：TestFrame.java
import java.awt.*;
import java.awt.event.*;
public class TestFrame
{
	public static void main(String [] args)
	{
		Frame f=new Frame("IT资讯交流网");
		f.setSize(300,300);
		f.setVisible(true);
		f.addWindowListener(new MyWindowListener());
	}
}
class MyWindowListener implements WindowListener
{
	public void windowClosing(WindowEvent e)
	{
		e.getWindow().setVisible(false);
		((Window)e.getComponent()).dispose();
		System.exit(0);
	}
	public void windowActivated(WindowEvent e){}
	public void windowClosed(WindowEvent e){}
	public void windowDeactivated(WindowEvent e){}
	public void windowDeiconified(WindowEvent e){}
	public void windowIconified(WindowEvent e){}
	public void windowOpened(WindowEvent e){}
}
《Java就业培训教程》P295源码
import java.awt.*;
import java.awt.event.*;
public class TestFrame implements ActionListener
{
		Frame f=new Frame("IT资讯交流网");
		public static void main(String [] args)
		{
			TestFrame tf=new TestFrame();
			tf.init();
		}
		public void init()
		{
			Button btn=new Button("退出");
			btn.addActionListener(new TestFrame());
			f.add(btn);
			f.setSize(300,300);
			f.setVisible(true);
		}
		public void actionPerformed(ActionEvent e)
		{
			f.setVisible(false);
			f.dispose();
			System.exit(0);
		}
}
《Java就业培训教程》P296源码
import java.awt.*;
import java.awt.event.*;
class TestFrame
{
	Frame f=new Frame("IT资讯交流网");
	public static void main(String [] args)
	{
		new TestFrame().init();
	}
	public void init()
	{
	    Button btn=new Button("退出");
	    btn.addActionListener(new ActionListener()
		{
		        public void actionPerformed(ActionEvent e)
		        {
			        f.setVisible(false);
			        f.dispose();
			        System.exit(0);
		        }	
		});
		f.add(btn);
		f.setSize(300,300);
		f.setVisible(true);
		
	}
}
《Java就业培训教程》P300源码
 程序清单：TestMyButton.java
import java.awt.*;
import java.awt.event.*;
class MyButton extends Button
{
	private MyButton friend;
	public void setFriend(MyButton friend)
	{
		this.friend = friend;
	}
	public MyButton(String name)
	{
		super(name);
		enableEvents(AWTEvent.MOUSE_MOTION_EVENT_MASK);
	}
	protected void processMouseMotionEvent(MouseEvent e)
	{
		setVisible(false);
		friend.setVisible(true);
	}
}
public class TestMyButton
{
	public static void main(String [] args)
	{
		MyButton btn1 =new MyButton("你来抓我呀!");
		MyButton btn2 =new MyButton("你来抓我呀!");
		btn1.setFriend(btn2);
		btn2.setFriend(btn1);
		btn1.setVisible(false);
		Frame f =new Frame("it315");
		f.add(btn1, "North");//将btn1增加到f的北部
		f.add(btn2, "South");//将btn2增加到f的南部
		f.setSize(300,300);
		f.setVisible(true);
		btn1.setVisible(false);	
	}
}
《Java就业培训教程》P301源码
程序清单：DrawLine.java
import java.awt.*;
import java.awt.event.*;
public class DrawLine
{
	Frame f= new Frame("IT资讯交流网");
	public static void main(String [] args)
	{
		new DrawLine().init();	
	}
	public void init()
	{
		f.setSize(300,300);
		f.setVisible(true);
		f.addMouseListener(new MouseAdapter()
        {
	        int orgX;
	        int orgY;
            public void mousePressed(MouseEvent e)
            {
		        orgX=e.getX();
		        orgY=e.getY();
            }
            public void mouseReleased(MouseEvent e)
	        {
				f.getGraphics().setColor(Color.red);
//设置绘图颜色为红色
		    f.getGraphics().drawLine(orgX,orgY,e.getX(),e.getY());
			}	
    	});
	}
}
《Java就业培训教程》P306源码
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
class MyLine
{
	private int x1;
	private int y1;
	private int x2;
	private int y2;
	public MyLine(int x1,int y1,int x2,int y2)
	{
		this.x1=x1;
		this.y1=y1;
		this.x2=x2;
		this.y2=y2;
	}
	public void drawMe(Graphics g)
	{
		g.drawLine(x1,y1,x2,y2);
	}
}
public class RerawAllLine extends Frame
{
	Vector vLines=new Vector();
	public static void main(String [] args)
	{
		RedrawAllLine f=new RedrawAllLine();
		f.init();
	}
	public void paint(Graphics g)
	{
		g.setColor(Color.red);
		Enumeration e=vLines.elements();
		while(e.hasMoreElements())
		{
			MyLine ln=(MyLine)e.nextElement();
			ln.drawMe(g);
		}
	}
	public void init()
	{
		this.addWindowListener(new WindowAdapter(){
			public void windowClosing(WindowEvent e)
			{
				((Window)e.getSource()).dispose();
				System.exit(0);
			}
			});
		addMouseListener(new MouseAdapter(){
			int orgX;
			int orgY;
			public void mousePressed(MouseEvent e)
			{
				orgX=e.getX();
				orgY=e.getY();
			}
			public void mouseReleased(MouseEvent e)
			{
				Graphics g=e.getComponent().getGraphics();
				g.setColor(Color.red);
				g.drawLine(orgX,orgY,e.getX(),e.getY());
				vLines.add(new MyLine(orgX,orgY,e.getX(),e.getY()));
			}
			});
		this.setSize(300,300);
		setVisible(true);
	}
}
《Java就业培训教程》P311源码
import java.awt.*;
import java.awt.event.*;
public class DrawImage extends Frame
{
	Image img=null;
	public static void main(String [] args)
	{
		DrawImage f= new DrawImage();
		f.init();
	}
	public void init()
	{
		img=this.getToolkit().getImage("c:\\test.gif");
		setSize(300,300);
		setVisible(true);
		this.addWindowListener(new WindowAdapter()
		{
			public void windowClosing(WindowEvent e)
			{
				System.exit(0);
			}
		});
				
	}
	public void paint(Graphics g)
	{
			getGraphics().drawImage(img,0,0,this);	
	}
}
《Java就业培训教程》P312源码
程序清单：DrawLine.java
import java.awt.*;
import java.awt.event.*;
public class DrawLine extends Frame
{
	Image oimg=null;
	Graphics og=null;
	public static void main(String [] args)
	{
		new DrawLine().init();	
	}
	public void init()
	{
		setSize(300,300);
		setVisible(true);
		Dimension d=getSize();
		oimg=createImage(d.width,d.height);
		og=oimg.getGraphics();	
		addMouseListener(new MouseAdapter()
		{
			int orgX;
			int orgY;
			public void mousePressed(MouseEvent e)
			{
				orgX=e.getX();
				orgY=e.getY();
			}
			public void mouseReleased(MouseEvent e)
			{
				Graphics g=getGraphics();
				g.setColor(Color.red);//设置绘图颜色为红色
				g.setFont(new Font("隶书",Font.ITALIC|Font.BOLD,30));
				//设置文本的字体
				g.drawString(new String(orgX +"," +orgY),orgX,orgY);
				//打印鼠标按下时的坐标文本
				g.drawString(new String(e.getX() +"," +e.getY()),
				e.getX(),e.getY());//打印鼠标释放时的坐标文本
				g.drawLine(orgX,orgY,e.getX(),e.getY());
				og.setColor(Color.red);//设置绘图颜色为红色
				og.setFont(new Font("隶书",Font.ITALIC|Font.BOLD,30));
				//设置文本的字体
				og.drawString(new String(orgX +"," +orgY),orgX,orgY);
				//打印鼠标按下时的坐标文本
				og.drawString(new String(e.getX() +"," +e.getY()),
				e.getX(),e.getY());//打印鼠标释放时的坐标文本
				og.drawLine(orgX,orgY,e.getX(),e.getY());
			}
		});
	}
	public void paint(Graphics g)
	{
		if(oimg !=null)
			g.drawImage(oimg,0,0,this);
	}
}
 
   
--------------------------------------------------------------------------------
 
《Java就业培训教程》 作者：张孝祥 书中源码 
《Java就业培训教程》P316源码
程序清单：TestStopWatch.java
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.text.SimpleDateFormat;
class StopWatch	extends Canvas implements Runnable
{
	private long startTime = 0;
	private long endTime = 0;
	private boolean bStart = false;
	public StopWatch()
	{
		enableEvents(AWTEvent.MOUSE_EVENT_MASK);
		setSize(80,30);
	}
	protected void processMouseEvent(MouseEvent e)
	{
		if(e.getID() == MouseEvent.MOUSE_PRESSED)
		{
/*鼠标按下时，启动计时线程，并让起始时间变量和终止时间变量都等于当前时间*/
			bStart = true;
			startTime = endTime  = System.currentTimeMillis();
			repaint();
			new Thread(this).start();
		}
		else if(e.getID() == MouseEvent.MOUSE_RELEASED)
		{
			/*鼠标释放时，终止计时线程，并重绘窗口表面上的内容*/
			bStart = false;
			repaint();
		}
		super.processMouseEvent(e);
	}
	public void paint(Graphics g)
	{
/*时间值的小时、分钟、秒、都用两位数字显示，
不足两位的部分前面加0，即"HH:mm:ss"这种的格式。*/
		SimpleDateFormat sdf= new SimpleDateFormat("HH:mm:ss"); 
	/*最刚开始编写这个程序的时候，直接使用elapsedTime.setTime(endTime-startTime)；
语句设置elapsedTime时间对象的数字值，从运行结果上发现，即使endTime-startTime等于0，
但elapsedTime显示的时间却不是"00:00:00"，而是"08:00:00"。我们曾经讲过，时间在计算机
内存中也是用一个长整数表示的，在这里，我们又发现，即使这个内存中的长整数等于0时，由于
Date类考虑了本地时区问题，所以，其表示的时间就不一定为"零点：零分：零秒"。这里不需要
考虑时区问题，只是借助Date类来帮我们生成"HH:mm:ss"这种时间表示格式。明白这个问题后，
我们就不难想像出，可以先求出显示时间为"00:00:00"的时间对象在内存中对应的那个长整数，
然后在这个基础上加上计时器所记下的时间值，最后就可以显示出我们想要的结果。*/	
		Date elapsedTime =null;
		try
		{
		elapsedTime= sdf.parse("00:00:00");
		}catch(Exception e){}
		elapsedTime.setTime(endTime - startTime +
 elapsedTime.getTime());
		String display =  sdf.format(elapsedTime);
		g.drawRect(0,0,78,28);
		g.fill3DRect(2,2,75,25,true);
		g.setColor(Color.WHITE);
		g.drawString(display,10,20);
	}
	public void run()
	{
		while(bStart)
		{
			try
			{
			Thread.sleep(500);
			}catch(Exception e){e.printStackTrace();}
			endTime = System.currentTimeMillis();
			repaint();
		}
	}
}
public class TestStopWatch
{
	public static void main(String [] args)
	{
		Frame f =new Frame("StopWatch");
		f.add(new StopWatch());
		f.setSize(200,200);
		f.setVisible(true);
			f.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e)
				{
					System.exit(0);
				}
				});
	}
}
《Java就业培训教程》P319源码
程序清单：TestCheckbox.java