Parse a long, returning a default value on errors. Handles arrays of arbitrary type, including nested arrays. Check if an object extends a given class or one of its superclasses. An instanceof that works on Class objects at runtime, instead of type descriptors at compile time. Test is a number is even.
Test is a number is odd.
Count the number of 1-bits in a byte. Count the number of 1-bits in an int. Count the number of 1-bits in a long. The standard version catches and ignores IOExceptions from below. This version sends them on to the caller.