Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take mock test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is inheritance in object-oriented programming?
💡 Hint: Think of it as a child receiving traits from a parent.
Question 2
Easy
What is an interface?
💡 Hint: It’s like a contract for 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 type of inheritance allows a subclass to inherit from one superclass?
- Multiple Inheritance
- Single Inheritance
- Multilevel Inheritance
💡 Hint: Consider the basic structure of class hierarchies.
Question 2
True or False: An interface can contain concrete methods.
- True
- False
💡 Hint: Think about what a class is required to do when it implements an interface.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a Java class structure using inheritance to represent shapes. Include at least one subclass for a geometric shape and demonstrate method overriding.
💡 Hint: Think about how different shapes will have different ways to calculate their area, and implement that in code.
Question 2
Implement multiple interfaces in a Java class. Create interfaces for 'Draw' and 'Paint', and have a class 'Art' that implements both.
💡 Hint: Consider how a single class can adopt behaviors from multiple interfaces.
Challenge and get performance evaluation