package class6_1_RuntimeStack_021;

public class RuntimeStack {
    public static void main(String[] args) {
        RuntimeStack driver = new RuntimeStack();

        System.out.println(driver.dist(0, 0, 3, 4)); // 5
    }

    //Note: these methods SHOULD be declare public or private
    //This is just to match the slide that had VERY limited space.
    double dist (int x1,int y1,int x2,int y2) {
        return Math.sqrt(ssd(x1, y1, x2, y2));
    }
    double ssd(int x1,int y1,int x2,int y2) {
        return sqr(x1-x2)+sqr(y1-y2);
    }
    double sqr(int value) {
        return value*value;
    }
}