Book Image

The Complete Coding Interview Guide in Java

By : Anghel Leonard
Book Image

The Complete Coding Interview Guide in Java

By: Anghel Leonard

Overview of this book

Java is one of the most sought-after programming languages in the job market, but cracking the coding interview in this challenging economy might not be easy. This comprehensive guide will help you to tackle various challenges faced in a coding job interview and avoid common interview mistakes, and will ultimately guide you toward landing your job as a Java developer. This book contains two crucial elements of coding interviews - a brief section that will take you through non-technical interview questions, while the more comprehensive part covers over 200 coding interview problems along with their hands-on solutions. This book will help you to develop skills in data structures and algorithms, which technical interviewers look for in a candidate, by solving various problems based on these topics covering a wide range of concepts such as arrays, strings, maps, linked lists, sorting, and searching. You'll find out how to approach a coding interview problem in a structured way that produces faster results. Toward the final chapters, you'll learn to solve tricky questions about concurrency, functional programming, and system scalability. By the end of this book, you'll have learned how to solve Java coding problems commonly used in interviews, and will have developed the confidence to secure your Java-centric dream job.
Table of Contents (25 chapters)
1
Section 1: The Non-Technical Part of an Interview
7
Section 2: Concepts
12
Section 3: Algorithms and Data Structures
19
Section 4: Bonus – Concurrency and Functional Programming

Chapter 13: Trees and Graphs

This chapter covers one of the trickiest topics asked in interviews: trees and graphs. While there are tons of problems related to these two topics, only a handful of them are actually encountered in interviews. Therefore, it is very important to prioritize the most popular problems with trees and graphs.

In this chapter, we'll start with a brief overview of trees and graphs. Later, we'll tackle the most popular and challenging problems encountered in interviews at IT giants such as Amazon, Microsoft, Adobe, and other companies. By the end of this chapter, you'll know how to answer interview questions and solve coding challenges regarding trees and graphs in an efficient and comprehensive way.

This chapter covers the following topics:

  • Trees in a nutshell
  • Graphs in a nutshell
  • Coding challenges

So, let's get started!