The Java ____ class is a collection of methods used to start, run, stop, and check the status of a thread.

Excel does not provide a method to check the spelling in a worksheet

Indicate whether the statement is true or false

Cryptographic systems are generically classified by _________.

A. the type of operations used for transforming plaintext to ciphertext B. the number of keys used C. the way in which the plaintext is processed D. all of the above