fwsample.java~1~

《深入浅出设计模式》的完整源代码

package myimage;
import javax.swing.JFrame;
import java.awt.HeadlessException;
import java.awt.*;

public class FWSample extends JFrame {
  public FWSample () throws HeadlessException {
    super ("flyweight sample");
    factory = new MyImageFactroy();
    setSize (220, 265);
    setVisible (true);
    repaint ();
  }
  public void paint (Graphics g) {
    //イメージをクリアしておく
    g.clearRect (0, 0, getWidth (), getHeight ());
    String name;
    for (int i = 0; i < 5; i++) {
      for (int j = 0; j < 5; j++) {
        //乱数を発生
        //0:cake 1:candy 2:origiri
        int number = (int) ( (Math.random () * 3) % 3);
        if (number == 0)
          name = "cake";
        else if (number == 1)
          name = "candy";
        else
          name = "onigiri";
          //イメージ描画用MyImageクラスをファクトリーから取得
        MyImage myImage = factory.getMyImage (name);
        //イメージと文字を描画
        myImage.draw (g, 10 + i * 40, 30 + j * 45, name, this);
      }
    }
  }
  public static void main(String argv[]){
    new FWSample ();
  }
}