Question

question in picture
irrelevant answers 10 answers will be reported​

Answer 1

class prog

{

   public static void main (String[] args)

   {

       int n = 289;

       double r = Math.sqrt(n);

       if (n==r*r) {

           System.out.println("Perfect Square");

       }

       else {

           System.out.println("Not a perfect square");

       }

   }

}

Some are there which has got no mistakes but still I modified so that the program runs efficiently.

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