This book is a beginner's guide to Java Programming Language for Kids ages 12 - 18. I have explained all the topics in a simple, concise and easy language with thorough examples, codes and have tried my best to make the learning process fun, informative and interesting at the same time. If you want to gain an in-depth understanding, it is quite a simple book for the job. In addition, it is a good way to get started with learning Java Programming Language.