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<lang java>public class AngleDifference {
public static double getDifference(double b1, double b2) {
double r = (b2 - b1) % 360.0;
if (r < -180.0)
r += 360.0;
if (r >= 180.0)
r -= 360.0;
return r;
}
}
public static void main(String[] args) {
System.out.println("Input in -180 to +180 range");
System.out.println(getDifference(20.0, 45.0));
System.out.println(getDifference(-45.0, 45.0));
System.out.println(getDifference(-85.0, 90.0));
System.out.println(getDifference(-95.0, 90.0));
System.out.println(getDifference(-45.0, 125.0));
System.out.println(getDifference(-45.0, 145.0));
System.out.println(getDifference(-45.0, 125.0));
System.out.println(getDifference(-45.0, 145.0));
System.out.println(getDifference(29.4803, -88.6381));
System.out.println(getDifference(-78.3251, -159.036));
System.out.println("Input in wider range");
System.out.println(getDifference(-70099.74233810938, 29840.67437876723));
System.out.println(getDifference(-165313.6666297357, 33693.9894517456));
System.out.println(getDifference(1174.8380510598456, -154146.66490124757));
System.out.println(getDifference(60175.77306795546, 42213.07192354373));
}
}
}</lang>
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