Question

6. Write a program to accept a number and check whether the number is a perfect square
or not
Sample Input: 49
Sample Output: A perfect square (java program)​

Answer 1

package com.company;

/* Write a program to accept a number and check whether the number is a perfect square or not.

Sample Input=49

Sample Output= A perfect square.

*/

import java.util.Scanner;

public class Main

{

   public static void main(String[] args)

   {

       Scanner sc = new Scanner (System.in);

       System.out.println("Enter a Number:");

       double n = sc.nextDouble();

       double n2 = Math.sqrt(n);

       if (n2%1==0) {

           System.out.println("The entered number is a perfect square");

       }

       else {

           System.out.println("The entered number is not a perfect square");

       }

   }

}