StdDraw绘图

相关内容：

1.Timer:定时器

2.StdDraw绘图工具

3.动态显示

代码实现：

package drawpicture;

import com.algs4.stdlib.StdDraw;

import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;

public class TimerDraw {
    public static int j=50;
    static Timer timer;
    private static int N=100;
    private static Random ran=new Random();
    public static void main(String[] args) throws Exception{
        timer = new Timer();
        StdDraw.setXscale(0,N);
        StdDraw.setYscale(0,N*N);
        //执行任务
        timer.schedule(new TimerDraw.DrawTask(), 1000, 1000);
    }

    static class DrawTask extends TimerTask {
        @Override
        public void run() {
            int i=0;
            for (; i < N; ++i) {
                StdDraw.filledRectangle(i,0,1,i*ran.nextInt(100));
            }
            try{
                Thread.sleep(500);
            }catch(Exception e){
                e.printStackTrace();
            }
            j+=10;
            if(j==100){
                timer.cancel();
                //事件到达 保留图像
            }else {
                StdDraw.clear();
            }
        }
    }
}

资源：
https://share.weiyun.com/5kLvDQS
https://share.weiyun.com/5LRwSxS