public class findHidden {
public static void main(String[] args) {
boolean a=true;
double n=0;
do{
a = hidden.MysterySquare.inSquare(n);
System.out.println("a = " +a);
n = n + .1;
}while (a);//end while
System.out.println("n = " +n);
}//end main
}//end class
I am guessing you are trying to increment n
until the return value is false
?