A perfect square is a number that is made by squaring a whole number.
For example:
16 is a perfect square because 42 = 16.
25 is also a perfect square because 52 = 25.
And it goes on and on … .
So now let’s determine in Java if a given number is perfect square or not.
public class checkPerfectSquare(){
public static void main(String args[]){
System.out.println(isPerfectSquare(16));
}
public static String isPerfectSquare(int n) {
double sqrt=Math.sqrt(n);
if ((sqrt - Math.floor(sqrt)) == 0){
return "Integer "+ n+ " is a Perfect Square";
}else{
return "Integer "+ n+ " is NOT a Perfect Square";
}
}
}
//16 is a Perfect Square
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