Solution to the distance formula within a Point class

public class Point {
	private double x;
	private double y;

	public Point(double x, double y) {
		this.x = x;
		this.y = y;
	}

	public double getX() { return x; }
	public double getY() { return y; }

	public double square(double x) { return x * x; }

	public double distance(Point otherPoint) {
		return Math.sqrt(square(x - otherPoint.getX()) + square(y - otherPoint.getY()));
	}

	public String toString() {
		return "(" + x + ", " + y + ")";
	}
}