Two integers are relatively _________ if and only if their only common positive integer factor is 1. ?

Static variables are often used:

a. in arithmetic expressions b. to communicate between objects c. within looping structures d. all of the above

? In the above code, two strings are evaluated using the equivalency operator. Why can this be a problem, and what other methods are offered by Java for working with characters and strings?

What will be an ideal response?