PerfectSquare.java

public class PerfectSquare {
    public static void main(String[] args) {
        int min = 1;
        int max = 10000;
        int input = min + (int)(Math.random() * ((max - min) + 1));
        
        if(isPerfectSquare(input)) {
            System.out.println(input + " is a perfect square");
        }
        else {
            System.out.println(input + " is not a perfect square");
        }
    }
    
    static boolean isPerfectSquare(int num) {
        int i = 1;
        while (i * i < num) {
            i += 1;
        }
        return i * i == num;
    }
}