deserialsample.java

java经典的源代码 我非常喜欢这个源代码 对于编程很有好处

//DeSerialSample.Java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import com.borland.jbcl.layout.*;
import java.io.*;
public classDeSerialSample extends JFrame
{
  private JPanel contentPane;
  private XYLayout xyLayout1 = new XYLayout();
  private JButton jButton1 = new JButton();
  private DrawPicture area=new DrawPicture();
  ArrayList picture=new ArrayList();
  public DeSerialSample() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    jButton1.setRolloverEnabled(true);
    jButton1.setText("Reatore");
    jButton1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton1_actionPerformed(e);
      }
    });
    contentPane.setLayout(xyLayout1);
    this.setSize(new Dimension(400, 200));
    this.setTitle("Serial Sample");
    area.addMouseListener(draw);
    contentPane.add(jButton1, new XYConstraints(109, 3, -1, -1));
    contentPane.add(area,   new XYConstraints(39, 54, 310, 227));
  }

  void jButton1_actionPerformed(ActionEvent e) {
    try{

     ObjectInputStream in=new ObjectInputStream(new FileInputStream("objFile"));
     picture=(ArrayList)(in.readObject());
      in.close();
      repaint();
    }
    catch(Exception ex){
    }

  }
public static void main(String[] args){
    SerialSample frame1=new SerialSample();
    frame1.setSize(400,400);
    frame1.setVisible(true);
  }
  MouseAdapter draw=new MouseAdapter(){
    public void mousePressed(MouseEvent e){
      Point p=new Point(e.getX(),e.getY());
      picture.add(p);
      repaint();
    }
  };
class DrawPicture extends JTextArea{
  DrawPicture(){
    super("",15,20);
    repaint();
  }
  public void paintComponent(Graphics g){
    super.paintComponent(g);
    g.setColor(Color.red);
    int i=0;
    while(i<picture.size()){
      Point p0=(Point)(picture.get(i++));
      int x=p0.x;
      int y=p0.y;
      g.drawOval(x,y,50,50);
    }
  }
}
}