The checkedSubtract(long a, long b) is a method of Guava’s LongMath Class which accepts two parameters a and b, and returns their difference.
public static long checkedSubtract(long a, long b)
Parameters: The method accepts two long values a and b and computes their difference.
Return Value: The method returns the difference of long values passed to it, provided it does not overflow.
Exceptions: The method checkedSubtract(long a, long b) throws ArithmeticException if the difference i.e, (a – b) overflows in signed long arithmetic.
Below examples illustrate the implementation of above method:
Difference of 25 and 36 is: -11 Difference of 150 and 667 is: -517
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