Top 100 Tricky Java Interview Questions
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Top 100 Tricky Java Interview Questions
INTRODUCTION: Tricky Java Interview Questions This book contains tricky and nasty Java interview questions that an interviewer asks in Java technology interview. It is a compilation of questions after attending dozens of Java interviews in top-notch companies like- Google, Facebook, Ebay, Amazon etc. How will this book help me? By reading this book, you do not have to spend time searching the Internet for Java interview questions. We have already compiled the list of the most popular tricky Java 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 level of questions in this book? This book contains questions that are good for Software Engineer, Senior Software Engineer, Principal Engineer and Software Architect level. It does not contain easy Java questions. It is mainly for Tricky Java Interview questions.You can refer other books of Knowledge Powerhouse for different levels in Java interview preparation. What are the sample questions in this book? How can you determine if JVM is 32-bit or 64-bit from Java Program? What is the right data type to represent Money (like Dollar/Pound) in Java? Is ++ operation thread-safe in Java? How can you mark an array volatile in Java? Can you create an Immutable object that contains a mutable object? In Java, can we store a double value in a long variable without explicit casting? What will this return 5*0.1 == 0.5? true or false? How can you do constructor chaining in Java? How can we find the memory usage of JVM from Java code? Explain the difference between fail-fast and fail-safe iterators? Can you catch an exception thrown by another thread in Java? Do you think Java Enums are more powerful than integer constants? How can you check if a String is a number by using regular expression? http://www.knowledgepowerhouse.com
Java Concurrency in Practice
Threads are a fundamental part of the Java platform. As multicore processors become the norm, using concurrency effectively becomes essential for building high-performance applications. Java SE 5 and 6 are a huge step forward for the development of concurrent applications, with improvements to the Java Virtual Machine to support high-performance, highly scalable concurrent classes and a rich set of new concurrency building blocks. In Java Concurrency in Practice, the creators of these new facilities explain not only how they work and how to use them, but also the motivation and design patterns behind them. However, developing, testing, and debugging multithreaded programs can still be very difficult; it is all too easy to create concurrent programs that appear to work, but fail when it matters most: in production, under heavy load. Java Concurrency in Practice arms readers with both the theoretical underpinnings and concrete techniques for building reliable, scalable, maintainable concurrent applications. Rather than simply offering an inventory of concurrency APIs and mechanisms, it provides design rules, patterns, and mental models that make it easier to build concurrent programs that are both correct and performant. This book covers: Basic concepts of concurrency and thread safety Techniques for building and composing thread-safe classes Using the concurrency building blocks in java.util.concurrent Performance optimization dos and don'ts Testing concurrent programs Advanced topics such as atomic variables, nonblocking algorithms, and the Java Memory Model
Top 1000 Java Interview Questions and Answers: Includes Spring, Hibernate, Microservices, GIT, Maven, JSP, AWS, Cloud Computing
This is the ultimate book for interview preparation for Java jobs. It has questions on Java, Stream, Collections, Multi-threading, Spring, Hibernate, JSP, Design patterns, GIT, Maven, AWS and Cloud computing. It is a digest of questions from multiple sources. It covers almost all the technical areas of an interview for Java engineer position. The difficulty level of questions in this book vary from beginner to expert level.Once you go through this book, you will be very well prepared for facing Java interview for an experienced Software Developer.This books also contains Java tricky Interview questions, Java 8, Microserivces and AWS questions. Technical job applicants save pervious time in interview preparation by reading this book. You do not have to waste time in searching for questions and answers online. This books is your main book for Java based jobs.