These are must know Java interview FAQs. If you don’t get these Java interview questions right, you will not be getting an offer.
Q1. What is the difference between “==” and “equals(…)” in comparing Java String objects?
A1. When you use “==” (i.e. shallow comparison), you are actually comparing the …
As an enterprise Java developer, you will be spending more time integrating systems via Java web services & messaging. Java Web Services interview questions are must know for the Java developers.
Q1. What are the different styles of Web Services used for application integration? and What are the differences …
One of the very frequently asked open-ended interview questions for anyone experienced is:
Can you describe the high-level architecture of a recent application you had worked on?
You will be asked:
1) to draw an architectural diagram on a white board and
2) to provide a brief description of the …
Have you seen job advertisements requiring Java candidates to work in low latency, high throughput, real-time and distributed systems with share-nothing architectures? Wondering what questions you will be asked? If you are an experienced Java developer targeting high paying skills then it pays to get a good handle …
The client-side JavaScript based MVW (Model View Whatever) frameworks like AngularJS, Backbone, CanJS, Ember, etc have become mainstream and replacing server side Java based frameworks like JSF, Struts, Spring MVC. So, time to get a better handle on JavaScript and market yourself as a full stack …
Java does not have a sizeof operator like C++ does. Java uses automatic memory management known as the Garbage Collection, hence it is not that important to evaluate size of various objects. But, for the purpose of learning & fixing any potential memory issues, I have used “jvisualvm”, which is …
Spring interview questions are very common for the Java programmer jobs.
Q1. What do you understand by the terms Dependency Inversion Principle (DIP), Dependency Injection (DI) and Inversion of Control (IoC) container?
A1. The differences are very subtle and can be hard to understand. …
Video: Spring DIP, DI, and IoC. This extends 13 Spring interview questions & answers.
Q1. What do you understand by the terms Dependency Inversion Principle (DIP), Dependency Injection (DI) and Inversion of Control (IoC) container?
A1. Dependency Inversion Principle (DIP…
Auto-unboxing, switch, short circuit logical operators & exception handling are core Java basics that sometimes lead to obscure errors if not understood well & often tested in coding tests.
Q1. What is wrong with this code?
Java Collection interview questions and answers and Java String class interview questions and answers are must know for any Java developer as these two APIs are the most frequently used in your Java application code. You can’t write any decent Java application without these 2 APIs.
Q1. What will be …
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