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+// Java program to find if x is a %0A// perfect square. %0A%0Aimport java.util.*;%0Aimport java.lang.*;%0Aimport java.io.*;%0Aclass checkSquare %0A%7B %0A     static boolean isPerfectSquare(double x)  %0A     %7B %0A          %0A        // Find floating point value of %0A        // square root of x. %0A        double sr = Math.sqrt(x); %0A      %0A        // If square root is an integer %0A        return ((sr - Math.floor(sr)) == 0); %0A     %7D %0A      %0A    // Driver code %0A    public static void main(String%5B%5D args)  %0A    %7B %0A        Scanner sc = new Scanner(System.in);%0A        double x = sc.nextDouble(); %0A          %0A        if (isPerfectSquare(x)) %0A            System.out.print(%22Yes%22); %0A        else%0A            System.out.print(%22No%22); %0A    %7D %0A%7D %0A

Create checkPerfectSquare.java