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The Complete Coding Interview Guide in Java

You're reading from   The Complete Coding Interview Guide in Java An effective guide for aspiring Java developers to ace their programming interviews

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Product type Paperback
Published in Aug 2020
Publisher Packt
ISBN-13 9781839212062
Length 788 pages
Edition 1st Edition
Languages
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Author (1):
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Anghel Leonard Anghel Leonard
Author Profile Icon Anghel Leonard
Anghel Leonard
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Table of Contents (25) Chapters Close

Preface 1. Section 1: The Non-Technical Part of an Interview
2. Chapter 1: Where to Start and How to Prepare for the Interview FREE CHAPTER 3. Chapter 2: What Interviews at Big Companies Look Like 4. Chapter 3: Common Non-Technical Questions and How To Answer Them 5. Chapter 4: How to Handle Failures 6. Chapter 5: How to Approach a Coding Challenge 7. Section 2: Concepts
8. Chapter 6: Object-Oriented Programming 9. Chapter 7: Big O Analysis of Algorithms 10. Chapter 8: Recursion and Dynamic Programming 11. Chapter 9: Bit Manipulation 12. Section 3: Algorithms and Data Structures
13. Chapter 10: Arrays and Strings 14. Chapter 11: Linked Lists and Maps 15. Chapter 12: Stacks and Queues 16. Chapter 13: Trees and Graphs 17. Chapter 14: Sorting and Searching 18. Chapter 15: Mathematics and Puzzles 19. Section 4: Bonus – Concurrency and Functional Programming
20. Chapter 16: Concurrency 21. Chapter 17: Functional-Style Programming 22. Chapter 18: Unit Testing 23. Chapter 19: System Scalability 24. Other Books You May Enjoy

Chapter 9: Bit Manipulation

This chapter covers the most important aspects of bit manipulation that you should know about when it forms part of a technical interview. Such problems are often encountered in interviews and they are not easy. The human mind was not designed to manipulate bits; computers were designed for that. This means that manipulating bits is quite hard and extremely prone to mistakes. Hence, it is advisable to always double-check every bit operation.

Two things are extremely important for mastering these kinds of problems, as follows:

  • You must understand the theory of bits very well (for example, bit operators)
  • You must practice bit manipulation as much as possible

We need to keep these two statements in mind as we tackle the following topics:

  • Understanding bit manipulation
  • Coding challenges

Let's start with the theoretical part. It is strongly recommended that you extract the diagrams from this section. They will be...

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