APJ Abdul Kalam Technological University - OOP Using Java Quiz

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Questions and Answers

What is a package in Java used for?

Storing only classes
Grouping related classes and interfaces (correct)
Creating conflicts between classes
Providing access to built-in packages

Which of the following is an example of a built-in Java package?

com.example.*
user.package.*
java.util.*
java.io.* (correct)

What is the advantage of using Java packages?

Categorizing classes and interfaces for easy maintenance (correct)
Increasing complexity of the code
Reducing the number of available classes
Limiting access to classes and interfaces

How are user-defined packages categorized in Java?

Encapsulating a group of classes and interfaces (B) Signup and view all the answers

In Java, what does a package help to avoid?

Name conflicts (D) Signup and view all the answers

What is the purpose of a package in Java?

A package in Java is used to group related classes and interfaces, similar to a folder in a file directory, in order to avoid name conflicts and write maintainable code. Signup and view all the answers

How are packages in Java categorized?

Packages in Java can be categorized as built-in packages, which are existing Java packages like java.io.*, java.lang, java.util, and user-defined packages created by the user to categorize classes and interfaces. Signup and view all the answers

What is the advantage of using Java packages?

The advantages of using Java packages include categorizing classes and interfaces for easy maintenance and providing access protection. Signup and view all the answers

Who uses packages in Java?

Packages in Java are used by developers to organize and manage related classes and interfaces, and to encapsulate them for access protection and maintainability. Signup and view all the answers

Why are packages used in Java?

Packages are used in Java to group related classes and interfaces, avoid name conflicts, and write better maintainable code. Signup and view all the answers

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