Crack Your Java Interviews

Full Guide To Crack Java Interview

Recently, I have gone through many Java interviews and found that there is so much depth in Java theory part that we don’t know or aren’t able to see in our daily work. But when we start giving interviews then reality comes out.

So to solve this problem, I will try to guide you so that you can ace any Java interview. Also, I have attached a PDF of all the questions that are mostly asked in Java interviews and those I have faced.

Photo by Christin Hume on Unsplash

⚫ First of all, you need to know that most of the questions that come in an interview from Java theory are based only on these topics.

• OOPS concepts (Data Abstraction, Encapsulation, Inheritance, Polymorphism)
• Basic Java constructs like loops and data types
• String handling
• Collection framework
• Multithreading
• Exception handling
• Generics
• Synchronization
• Serialisation & De-serialisation
• Concurrent collection

and if you are a beginner in Java you should primarily focus on Java Basic Concepts, Strings, OOPS, Java Collection, and Exception Handling.

so what I meant by “primary focus” is you should have in-depth knowledge of these topics. To help you out, see the PDF that I have attached. It contains a lot of questions that will provide you with enough knowledge on these topics.

Apart from that if you are an intermediate in Java then you should also know about

Advanced Java:

• JDBC (Java Database Connectivity)
• Servlet
• JSP

Popular Frameworks:

• Spring (MVC, Core, JDBC, ORM, AOP)
• Hibernate ORM framework
• Struts
• JSF
• Web Services (SOAP & REST).

⚫ The most common problem we face whenever we try to learn such a complex theory like Java is after learning most of the questions we forget after 2–3 days. So what is the solution?

Well, it’s easy you don’t need to focus on learning instead try to understand what the answer/solution is saying and do the practical if possible. Once you will understand how things are working you can build your answer in your words only.

⚫ Whenever you face any new question/topic in your learning phase or an interview. Don’t leave the question behind especially when you are not able to answer that. Instead, write that question somewhere and include it in your daily practice.

⚫ Don’t expect that there are no questions of coding that will be asked in the interview. There are a lot of common coding questions available in Java that you will get confused when you try to answer them.

So make your concepts strong not only through learning but through gaining knowledge. Only through that, you will be able to conquer Java Interviews.

Most Asked Interview Questions in Java

Thanks for reading
Akash Shukla