미카 프로젝트

public class SimulatorView extends View{

TimerTask timerTask = new TimerTask(){
        int frame = 0;
        @Override
        public void run() {
//            sim.grow();
            frame++;
            if(frame > 100) {
                invalidate();
                frame = 0;
            }
        }
    };

:

  public void start(){

    timer = new Timer();
    timer.schedule(timerTask,0, 20);
  }
}

유용하면서 간단한 디자인패턴 : 싱글톤 패턴

Singleton class  Basic type

public class Singleton {
	private volatile static Singleton uniqueInstance = null;
	
	private Singleton() {}
	public static Singleton getInstance (){
		if ( uniqueInstance == null){
			synchronized( Singleton.class){
				if (uniqueInstance == null)
					uniqueInstance = new Singleton();
			}
		}
		return uniqueInstance;
	}
}

http://www.sorting-algorithms.com/

graph and animation.