Top Java Challenges
Cracking the Coding Interview

I am a software engineer who faced real interviews as a candidate for startups and big companies. Throughout the years, I have sourced factual questions that have been tried, tested, and commented on step by step and are now part of this book!.
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Why are algorithms used in interviews?

Jobs in the tech industry are expected to grow exponentially in the next few years. If you plan to enter the job market soon, you must know that companies will evaluate your problem-solving skills based on data structures and algorithms, and you will need to face a complex problem on a blackboard.
That's the reason why Algorithms and Data structures are vital. You need this book because it includes the most common questions and real coding challenges you can find in a real interview!.
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What Will You Get From This Book?

Understand the fundamentals of common data structures and algorithms and apply them to real questions.

Create algorithms that range from basic to very complex.

Solve the most popular Java coding problems efficiently.

Develop a complete algorithm using the TDD approach, e.g., graph-based transport system, tic tac toe game.

React better than other candidates, when faced with a new problem, e.g., design an algorithm to solve a problem you haven't seen before.

Better chances of negotiating your next salary.

What's Included

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  • Inner workings of every Data Structure.
  • Big O Notation to optimize your algorithm.
  • Arrays, queues, hashing, trees, graphs, sorting, and many more.
  • 40 real code challenges explained step by step.
  • Complex topics explained in a simple manner.
  • Depth-first-search explained with so much in detail.
  • Tests for every algorithm.
  • Clean code practices to develop a readable algorithm.
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Who This Book Is For

If you are a skilled Java programmer but are concerned about the Java interview process, this based on real questions guide can help you land your next position.

Software Engineers/Software Developer

App/Web Developers

Coders/Programmers

Data/ML engineer

Interested in computer science

Get a Free Sample copy!

It will give you an overview of what you will get in the entire book.
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Book Reviews

See what our readers are saying.
"A MUST read for any Java Developer! Succinct and super informative!. The author tries his best to keep the explanation as succinct as possible at the same time providing the code snippets and explanations including pictorial representation of problem-solutions!"
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MKonda
Development Tech Lead at EBRD
"This is an excellent source material for anyone looking to gain an advantage in landing that competitive job. I truly found the real life examples so helpful, that I recommended this book to my developer friends."
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Henry Quinones
Business Development, Project Manager
Jobs in the tech industry are growing exponentially.

Be ready to negotiate your next salary!

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About The Author

Moises Gamio has been working 25 years as a Software Engineer for several companies from different economic sectors such as Government, Financial, Industrial, Educative, Consulting, Retail, and Research. He has been using several technological tools such as Java, C, Cobol, C#, Visual Basic, PHP, Python, and JScript, in operating systems such as Windows, Linux, Unix, and RISC 6000, in databases such as SQL Server, Oracle, MySQL, DB2, and Lotus Notes. His tasks are related to Software Development, Stages of Analysis, Design, Testing, and Deployment in On-premise and Cloud computing environments.

For eight years, he worked as a System Analyst for the Bank Sector. Since 2014, he has been a software engineer implementing web services for a B2B company in Berlin, Germany.

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