Find out angle between hour hand and minute hand

The minute hand moves 360 degree in 60 minute(or 6 degree in one minute) and hour hand moves 360 degree in 12 hours(or 0.5 degree in 1 minute).

public class HrMinAngle {

	public static void main(String[] args) {
		System.out.println(angle(3, 30));
	}

	private static int angle(int h, int m) {
		// We are going to convert Hr angle to min
		float hourAngle = (float) 0.5 * h * 60;
		System.out.println(hourAngle);
		float minAngle = (float) 6 * m;
		System.out.println(minAngle);
		return (int) Math.abs((hourAngle) - (minAngle));
	}

}

Output : 90