Java: Calculating the angle between two points in degrees

Question

I need to calculate the angle in degrees between two points for my own Point class, Point a shall be the center point.

Method:

public float getAngle(         


        

Answer 1

The javadoc for Math.atan(double) is pretty clear that the returning value can range from -pi/2 to pi/2. So you need to compensate for that return value.