文章标题

import java.util.Random;

/**
* Created by zcchen on 2017/4/11 0011.
*/
//这里使用的距离和速度都是常量
public class Speed {
public static void main(String[] args) {
//create a seeded random number generator
Random random = new Random(47);
int distance, rtime;
//choose value from 1 to 200
distance=random.nextInt(200)+1;
System.out.println("distance="+distance);
//choose value from 1 to 10
rtime = random.nextInt(10)+1;
System.out.println("rtime="+rtime);
int s = distance/rtime;
System.out.println("时速是："+s);

}
}