Converting 32-bit unsigned integer (big endian) to long and back

Question

I have a byte[4] which contains a 32-bit unsigned integer (in big endian order) and I need to convert it to long (as int can\'t hold an unsigned number).

Also, how d

Answer 1

Guava has useful classes for dealing with unsigned numeric values.

http://docs.guava-libraries.googlecode.com/git/javadoc/com/google/common/primitives/UnsignedInts.html#toLong(int)