如何计算两个角度量度的差？

如何在Java中计算两个角度量度（以度为单位）的差，使结果在[0°，180°]范围内？

例如：

350° to 15° = 25°
250° to 190° = 60°

* Shortest distance (angular) between two angles.

* It will be in range [0, 180].

public static int distance(int alpha, int beta) {

int phi = Math.abs(beta - alpha) % 360; // This is either the distance or 360 - distance

int distance = phi > 180 ? 360 - phi : phi;

return distance;

}