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Java Collections Overview

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Questions and Answers

What is a Java collection?

A class in Java

A collective unit of objects in the form of a group (correct)

A single object in Java

A method in Java

What is the purpose of the Java collection framework?

To store and manipulate a group of objects (correct)

To manipulate a single object

To create a new programming language

To delete objects

What does the Java collection framework include?

Only interfaces

Only the Java collections API

Only classes

An interface, a class, and the Java collections API (correct)

What is the purpose of the Iterable interface?

To provide an iterator to iterate through all the collections Signup and view all the answers

What is the main collection interface in Java?

Collection Signup and view all the answers

What do the collection interfaces specify?

What a class must do Signup and view all the answers

What is the purpose of generics in Java collections?

To reduce runtime errors by type checking the objects at compile time Signup and view all the answers

What is the benefit of using Java collections?

It reduces runtime errors Signup and view all the answers

What is the hierarchy of the collection framework?

Utility package -> Iterable -> Collection Signup and view all the answers

Java Collections Overview

Choose a study mode

Podcast

Questions and Answers

What is a Java collection?

What is the purpose of the Java collection framework?

What does the Java collection framework include?

What is the purpose of the Iterable interface?

What is the main collection interface in Java?

What do the collection interfaces specify?

What is the purpose of generics in Java collections?

What is the benefit of using Java collections?

What is the hierarchy of the collection framework?

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