50_面向对象_23_回调的实现_模板方法模式

callback or hook

public class PaintFrame {
public static void drawFrame(IMyFrame f){
System.out.println("启动线程");
System.out.println("增加循环");
System.out.println("查看消息栈");
//画窗口
f.paint();
System.out.println("启动缓存，增加效率");
}
public static void main(String[] args) {
drawFrame(new GameFrame01());
}
class GameFrame01 /*extends MyFrame*/ implements IMyFrame {
public void paint(){
System.out.println("GameFrame01.paint()");
System.out.println("画窗口");
}
}

class GameFrame02 extends MyFrame {
public void paint(){
System.out.println("GameFrame02.paint()");
System.out.println("画窗口");
}
}

}

public class MyFrame {
public void paint(){
System.out.println("把自己窗口画出来！");
}
}
interface IMyFrame {
void paint();
}