untitled1.java~1~

来自「applet java 的编程程序」· JAVA~1~ 代码 · 共 23 行

package chapter11;

import java.util.Random;

public class Untitled1
{
    public Untitled1()
    {
    }

    public static void main(String[] args)
    {
         Random random = new Random();//随机数
         long l1 = System.currentTimeMillis();
         for (int i = 0; i < 100; i++)
         {
             int k = random.nextInt();
         }
         long l2  = System.currentTimeMillis();
         System.out.println("time:"+(l2 - l1));
    }
}