Implement the method swap, as described in Self-Test Exercise 2, but remove the assumption that the i th and j th items in the list exist. Throw an exception if i or j is out of range.

Malware, not sure what else would fit that description.

These are very for instance for math pemdas parenthesis, exponents, multiplication, division, addition, subtraction without that i would never be able to remember what to do first with it i can remember.

Answerservice layer;

The answer for your specific question is d.