Mastering Java: The Ultimate Quiz for 'Thinking in Java'

Disable ads (and more) with a membership for a one time $2.99 payment

Dive into the depths of Java with our quiz based on "Thinking in Java, Fourth Edition" by Bruce Eckel. Test your knowledge, solidify concepts, and prepare for certification with challenging questions and insightful feedback.

Start Multiple Choice Practice Test
Start Flash Cards

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is encapsulation in the context of object-oriented programming?

  1. The process of converting objects into data stream

  2. The packaging of data and functions that operate on the data into a single unit

  3. The inheritance of properties from parent to child classes

  4. The separation of program code into different files

The correct answer is: The packaging of data and functions that operate on the data into a single unit

Encapsulation in the context of object-oriented programming refers to the bundling of data and functions that operate on that data into a single unit, commonly known as an object. This allows for the abstraction and protection of data within the object, making it inaccessible to the outside world without appropriate methods to access and modify it. Option A, converting objects into data streams, is incorrect as it refers to the process of serialization, which is a way of converting an object into a data format that can be stored or transmitted over a network. Option C, inheritance of properties, is incorrect as it refers to the process of a child class inheriting the properties and methods of its parent class. Option D, separation of program code into different files, is incorrect as it refers to the concept of modularity and organizing code into different files for better code maintenance. Encapsulation, on the other hand, is about

More Questions Like This