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 6: Object-Oriented Programming

This chapter covers the most popular questions and problems relating to Object-Oriented Programming (OOP) that are encountered at Java interviews.

Please bear in mind that my goal is not to teach you about OOP or, in more general terms, the aim of this book is not to teach you about Java. My goal is to teach you how to answer questions and solve problems in the context of an interview. In such a context, the interviewer wants a clear and concise answer; you'll not have the time for dissertations and tutorials. You have to be able to express your ideas lucidly and cogently. Your answers should be meaningful and you have to convince the interviewer that you really understand what you are saying and that you are not just reciting a number of sterile definitions. Most of the time, you should be able to express an article of several pages or a chapter of a book in one or several key paragraphs.

By the end of this chapter, you'll know...