Euler P09.java

public void p9() {
	for (int a = 1; a < 1000; a++) {
		for (int b = a + 1; b < 1000; b++) {
			double c = sqrt(Math.pow(a, 2) + Math.pow(b, 2), 1);

			if (((int)c == c) && (a + b + c == 1000)) {
				System.out.println((int)(a*b*c));
			}
		}
	}
}

public double sqrt(double n, double g) {
	double gx = ((n/g) + g)/2;
	if (gx == g) { return g; }
	return sqrt(n, gx);
}