Java has two basic kinds of numeric values: _____________, which have no fractional part, and ___________________ which do.

Which of the following is NOT a rule for defining names?

A) The letters C or R cannot be defined as a name. B) Spaces are valid. C) Defined name can be no longer than 255 characters. D) First letter must be a letter, underscore, or backslash.

The most common technique used for protecting a critical section in Linux is the _______ .

A) ?signal ? B) ?atomic bitmap operation C) ?atomic integer operation ? D) ?spinlock