We cannot learn how to drive a car just by learning theories. We've to see in real-time to get more understanding & confidence. Because driving a car is a skill or is an art which we need to perform ourselves.

Similarly, programming is an art and we need to learn it by doing brainstorming using pen & paper. We've to solve as many examples as possible to get expertise on it. Generally, we learn many java concepts especially Object-Oriented concepts but we're getting confused when we see them in the programs or we don't have an idea how to implement them because we don't have enough examples to practice.

After solving these puzzles,

1)You'll be able to Brainstorm on different java concepts with real-time examples which will build your confidence and you'll be able to understand the concepts in a better way.
2)You'll be able to visualize each concept as you'll see different examples of the same concepts
3) You'll get 360 degrees understanding of concepts as we've designed these challenges in a way that it'll give you almost all possible use of each concept
4)You'll be able to clear most interviews as all these challenges are very important with respect to interviews

I hope you'll gonna enjoy these challenges & feel free to share your feedback. Happy learning!