File extensions should not be changed by the user because the operating system uses them to identify the program that should be used to open the file.

Big O notation is concerned with the growth rate of algorithm run times, so ________.

a. constants are dominant b. constants are ignored c. constant terms are emphasized d. constants with large values are more important than those with low values

Answer the following questions true (T) or false (F)

1. A constructor is like a function. It can return any type value needed. 2. A constructor usually terminates by falling off the end of its block, but a return statement is permitted if there is no argument add following the word return..