Java packages

Which of this access specifies can be used for a class so that its members can be accessed by a different class in the same package?

• Public

• Protected

• No Modifier

• All of the mentioned

Which of these access specifiers can be used for a class so that its members can be accessed by a different class in the different package?

• Public

• Protected

• Private

• No Modifier

Which of the following is an incorrect statement about packages?

• Package defines a namespace in which classes are stored

• A package can contain other package within it

• Java uses file system directories to store packages

• A package can be renamed without renaming the directory in which the classes are stored

For which purpose packages are used in Java?

• Categorizes data

• Organizing java classes into namespaces

• faster compilation

• None of These

A package is a collection of

• classes

• interfaces

• editing tools

• classes and interfaces

If a variable is declared as private , then it can be used in _______.

• Any class of any package.

• Any class of same package.

• Only in the same class.

• Only subclass in that package.

which package is imported implicitly?

• java.applet

• java.util

• java.lang

• java.io

………………….. package in java contents language utility classes such as vectors, hash tables, random numbers date etc.

• java.util

• java.awt

• java.net

• java.lang

By convention, java packages begin with ………………. letters while all the class names begin with an ………………… letter.

• uppercase, uppercase

• lowercase, lowercase

• uppercase, lowercase

• lowercase, uppercase

Which of these keywords is used to define packages in Java?

• pkg
• Pkg
• package
• Package