Detect division by zero
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You are encouraged to solve this task according to the task description, using any language you may know.
Write a function to detect a divide by zero error without checking if the denominator is zero.
Java
Two ways to accomplish this task are presented here. They each return true if there is a division by zero or if Double.POSITIVE_INFINITY is used as a numerator.
One way to do this check in Java is to use the isInfinite function from the Double class:
public static boolean infinity(double numer, double denom){ return Double.isInfinite(numer/denom); }
Another way is to use the ArithmeticException as a check (which is not preferred because it expects an exception):
public static boolean except(double numer, double denom){ try{ int dummy = (int)numer / (int)denom;//ArithmeticException is only thrown from integer math return false; }catch(ArithmeticException e){return true;} }