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(Point target) {     return (float) Math.toDegrees(Math.atan2(target.x - x, target.y - y)); } 

Test 1: // returns 45

Point a = new Point(0, 0);     System.out.println(a.getAngle(new Point(1, 1))); 

Test 2: // returns -90, expected: 270

Point a = new Point(0, 0);     System.out.println(a.getAngle(new Point(-1, 0))); 

How can i convert the returned result into a number between 0 and 359?

Answer 1

you could add the following:

public float getAngle(Point target) {     float angle = (float) Math.toDegrees(Math.atan2(target.y - y, target.x - x));      if(angle < 0){         angle += 360;     }      return angle; } 

by the way, why do you want to not use a double here?