fwsample.java~18~

《深入浅出设计模式》的完整源代码

package myimage;
import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import java.util.*;
import javax.imageio.ImageIO;
import java.net.*;
import javax.swing.filechooser.*;

public class FWSample extends JFrame
 {
  public MyImageFactory factory;
  public FWSample (){
    super ("flyweight sample");
    factory = new MyImageFactory();
    setSize (220, 300);
    setVisible (true);
    repaint ();
  }
  public void paint (Graphics g) {
    g.clearRect (0, 0, getWidth (), getHeight ());
    String name;
    for (int i = 0; i < 5; i++) {
      for (int j = 0; j < 5; j++) {
        int number = (int) ( (Math.random () * 3) % 3);
        if (number == 0)
          name = "love";
        else if (number == 1)
          name = "pig";
        else
          name = "bird";
        MyImage myImage = factory.getMyImage (name);
        myImage.draw (g, 10 + i * 40, 45 + j * 45, name, this);
      }
    }
  }
  public static void main(String argv[]){
    new FWSample ();
  }

}