Practice Instance Variables - 1.3.b | Chapter 7: Variables and Expressions | ICSE Class 12 Computer Science
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβ€”perfect for learners of all ages.

games

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What are instance variables?

πŸ’‘ Hint: Think about how objects can have unique properties.

Question 2

Easy

Where should you declare instance variables?

πŸ’‘ Hint: Remember the structure of a class.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What are instance variables used for?

  • To store class methods
  • To maintain object state
  • To define data types

πŸ’‘ Hint: Think about what makes each object unique.

Question 2

True or False: Instance variables can be accessed directly from outside the class.

  • True
  • False

πŸ’‘ Hint: Consider the protection principles of OOP.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design a class 'Library' that has instance variables for 'bookTitle', 'author', and 'availability'. Create multiple instances of 'Library' with different values and display their properties.

πŸ’‘ Hint: Consider creating multiple objects of Library with different book details.

Question 2

Create a 'BankAccount' class with instance variables 'accountHolderName', 'accountNumber', and 'balance'. Include methods to deposit and withdraw, and track the balance accordingly.

πŸ’‘ Hint: Think about how each instance holds individual account details.

Challenge and get performance evaluation