Chapter 8.12, Problem 49SC

Program Plan Intro

Java packages:

• A Java package is a collection of related classes.
• A Java package organizes Java classes into namespaces, giving each form it contains a specific namespace.
• Classes in the same package can access private and protected members of each other's package.
• In general, the following types may be contained in a kit such as classes, interfaces, enumerations, and annotation types.
• A package helps a developer to group together the classes (and interfaces).

Explanation of Solution

b.

“java.lang”:

• The “java.lang” is a package used for the purpose of language support.
• “java...

Explanation of Solution

c.

“java.util”:

• The “java.util” is a package used for the purpose of utilities.
• “java...

Explanation of Solution

d.

“java.lang.Math”:

• The “java.lang.Math” is not a package, but a class...