This Java code review checklist is not only useful during code reviews, but also to answer an important Java job interview question, Q. How would you go about evaluating code …
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4 DevOps interview Q&As
Q1. What is DevOps? A1. Traditionally the developers & IT operations work in silos where the developers code, build, test & release the software artefacts and the IT operations deploy …
4 FAQ Performance tuning in Java interview Q&As
Firstly, the systems need to be designed well. For example, High level & low level system design considerations for read heavy systems vs High level & low level system design …
4 JEE Design Patterns Interview Q&As
Unlike J2EE, Java EE 6 consists of annotated classes without any dependencies on the platform. This approach eliminates the need to separate business logic from the infrastructure and makes the …
5 FAQs on transforming your thinking from OOP to FP
Functional Programming (i.e. FP) is prevalent in Big Data (i.e. Spark programming, etc) roles. A must know for Big Data Engineers and Analysts. One needs to get used to the …
5 Java concurrency management interview Q&As
Concurrency is very important in any modern system, and this is one topic many software engineers struggle to have a good grasp. The complexity in concurrency programming stems from the …
5 Java unit testing interview Questions and Answers
Q1 Why use mock objects in unit testing? A1 Unit testing is widely accepted as a “best practice” for software development. When you write an object, you must also provide …
6 JSON interview Q&As
Q1. What is JSON and how does it differ from an XML? A1. JSON (JavaScript Object Notation) is a lightweight, text-based, language-netral like XML, but less verbose than XML data …
6 Scaling your Java applications interview Q&As
Q1. What is the difference between performance and scalability? A1. The performance and scalability are two different things. For example, if you are in the business of transporting people in …
7 Java Modifiers every interviewer likes to quiz you on
Java modifiers like final, finally, const, volatile, and transient are very popular with the job interviewers. You will see why because of the possible drill down questions. Q1. What is …
8 Hibernate interview Q&As
FAQ Hibernate interview questions & answers are covered below.
Q1. What is an Object-to-Relational Mapping (i.e. ORM) tool?
A1. There are several ways to persist data …
8 Java memory management interview Q&As
Q1. Are memory leaks possible in Java, which has memory management via automatic Garbage Collection? A1. Memory and resource leaks are possible in any robust application. In managed languages such …
8 JEE (i.e. Java EE) Overview interview Q&As
This is JEE from a 10,000 feet before diving into details of each technology.
Q1. When a company requires Java EE experience, what are they really asking for?
A1. J…
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In 1999, I transformed my career from a Mechanical engineer to a self-taught Java engineer within 1 year, and a Java freelancer within 2 years, and in 2016 to a self-taught Big Data freelancer.
Over the past 22+ years, I have built a high-demand career as a Java & Big Data freelancer, delivering mission-critical solutions for 13+ top-tier organisations with a proven track record that has generated over 130+ job offers to choose from 150+ job interviews.
Amazon.com profile | LinkedIn | LinkedIn Group | YouTube
Email: java-interview@hotmail.com
Over the past 22+ years, I have built a high-demand career as a Java & Big Data freelancer, delivering mission-critical solutions for 13+ top-tier organisations with a proven track record that has generated over 130+ job offers to choose from 150+ job interviews.
Amazon.com profile | LinkedIn | LinkedIn Group | YouTube
Email: java-interview@hotmail.com
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