The sequential search algorithm uses a(n) ____ variable to track whether the item is found.

_______ is an animation engine used by Valve for its games and licensed for other game developers.

Fill in the blank(s) with the appropriate word(s).

Which of the following statements is false?

a. Most classes you’ll use in Java programs must be imported explicitly. b. There’s a special relationship between classes that are compiled in the same directory. By default, such classes are considered to be in the same package known as the default package. c. Classes in the same package are implicitly imported into main. d. An import declaration is not required when one class in a package uses another in the same package.