randomdemo.java

java课程的资料以及实验的代码

import java.util.*;
class RanDemo{
public static void main(String args[]) {
   Random Random_r1=new Random();
   Random Random_r2=new Random(50);
   //创建整数随机数
   System.out.println("Random_ r1.nextInt( )="+Random_r1.nextInt());
   System.out.println("Random_r2.nextInt( )="+Random_r2.nextInt());
   //生成0～5的随机数
   System.out.println("Random_r1.nextInt(5)="+Random_r1.nextInt(5));
   System.out.println("Random_r2.nextInt(5)="+Random_r2.nextInt(5));
   }
}