Top 100 Java Collections Interview Questions & Answers

by Knowledge Powerhouse

Java Collections Interview Questions Java Collections is a very important topic in Java language. Many fortune 500 organizations use Java Collections. This book contains basic to expert level Java Collections interview questions that an interviewer asks. Each question is accompanied with an answer so that you can prepare for job interview in short time. Often, these questions and concepts are used in our daily programming work. But these are most helpful when an Interviewer is trying to test your deep knowledge of Java Collections features. How will this book help me? By reading this book, you do not have to spend time searching the Internet for Java Collections interview questions. We have already compiled the list of the most popular and the latest Java Collections Interview questions. Are there answers in this book? Yes, in this book each question is followed by an answer. So you can save time in interview preparation. What is the best way of reading this book? You have to first do a slow reading of all the questions in this book. Once you go through them in the first pass, mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this book 2-3 times, you will be well prepared to face a technical interview for Software Engineer position in Java Collections framework. What is the level of questions in this book? This book contains questions that are good for a Associate Software engineer to a Senior Software engineer. The difficulty level of question varies in the book from a Fresher to an Experienced professional. What are the sample questions in this book? How will you copy elements from a Source List to another list? What are the Java Collection classes that implement List interface? What are the Java Collection classes that implement Set interface? What is the difference between an Iterator and ListIterator in Java? What is the difference between Iterator and Enumeration? What are the differences between the two data a Vector and an ArrayList? What are the differences between Collection and Collections in Java? What is the difference between an ArrayList and a LinkedList data structure? In which scenario, LinkedList is better than ArrayList in Java? What are the differences between a List and Set collection in Java? What is the difference between a Set and a Map in Java? What are the differences between a HashSet and TreeSet collection in Java?

84 pages, Kindle Edition

Published October 1, 2016