package javaShiYan; 5import javautilRandom; import javautilScanner; public class Experiment2 public static void mainString args Scanner sc=new ScannerSystemin; Systemoutprint

// This program generates a random number within a given range and calculates its square root.

package javaShiYan;

import java.util.Random; import java.util.Scanner;

public class Experiment2 { public static void main(String[] args) { Scanner sc=new Scanner(System.in); System.out.print("请输入一个正整数："); int i=sc.nextInt();

    Random r=new Random();
    int j=r.nextInt(i);
    
    System.out.println("产生的"+i+"以内的随机数是："+j);
    System.out.println(j+"的开平方是"+Math.sqrt(j));
}

}