Java Interview Questions and Answers | Core Java Interview Questions | Intellipaat

In this core java interview questions and answers video you will see the top 30 questions that are usually asked in the java interview process. We have collected these Java Interview Questions based on the new curriculum for Java so that you can include this in your Java interview preparation and excel in the interview. We have tried to cover almost all the concepts so that you clear the interview with ease.
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Why should you watch this java tutorial?

Java is an absolute powerful general-purpose programming language which is object-oriented. Java is used widely for developing cutting-edge applications be it for the website or mobile platform. Since java is easy to learn, implement, compile and debug it, it is finding much popularity among some of the biggest software companies around the world. If you are looking to clear the Java interview then this Java interview questions and answers is a must watch for you. In this Java interview questions video you will learn what are the most probable questions that will be asked in the interview.

Who is eligible to watch this Java interview preparation video?

This Java interview questions and answers video is both for experienced and freshers in the technology.

Why should you opt for a java career?

Java is an evergreen programming language that is being used in most of the organizations. You will grab the best jobs in top MNCs after finishing this Intellipaat java programming online training. The entire Intellipaat java course is in line with the industry needs. There is a huge demand for java certified professional. Hence this Intellipaat java tutorial for beginners is your stepping stone to a successful career!
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[Intellipaat]

Guys, which technology you want to learn from Intellipaat? Comment down below and let us know so we can create in depth video tutorials for you.:)

[VishalPawar-mtvv]

For 20th question, you have taken variable 'a' and decrementing value of 'x'

[AadityaKavthekar]

24:46 Hi Team, thank you for this video. It is really helpful :) One doubt, with Java8, we can also define methods in interface with the help of default keyword (which are non-abstract methods). Please check and let me know.

[predatel_rodini]

Thank God. It's the first video of more than 20 videos search result where I can understand the speaker's accent

[saishankar]

Hii... Can you plz explain what is OOPS-concept in Java..? and How it works on it..

[swarnasukantapradhan]

Great explanation but there is a mistake in question number 20 .You are declaring a as some amount and you are printing the value of x which is not declared in program, please check it.Thank you

[haykmkrtchyan]

Difference between == and equals().
Note that this both are the same thing under the hood. Most of the developers confirm that equals are for content comparison. That's wrong. Both are for reference comparison. String and all other wrapper classes override this method and write their own content comparison logic. That's why for String, equals() returns true.

[sanjaykale]

Thanks!....By taking the concept of wrapper class in consideration can we say that java is 100% object oriented?

[naveendubey]

Highly Appreciated. Very beautifully explained all questions

[saiganesh]

BEST CLEAR SHORT NEAT Explanation. To the Point. With 'Key' Points not getting missed. Thanks for this video. But Note: One needs to watch Java Full explanations for Few of these concepts first to be able to understand concept. Then ALL HERE YOU'VE GOT ARE KEY POINTS> Cheers

[snehsaluja]

Q19: "if a program takes 60 seconds to execute, then we can use 6 threads which will give us the result in 10 seconds" .. This statement is incorrect. It depends on the number of cores of the processor also. So, you cannot directly divide by 6 and say 6 threads take 10 seconds.

[sarathkumar-lpuw]

I appreciate u guys lots of stuffs explained clearly in this video... I need about python language with Django. 🤗

[ruchikamugdiya]

I hve been ask a question in java interview
Question-a normal file is there in that list of students n there rollno is there
Write a code to covert that normal file in ascending order
So write a code

[nandkishor]

Hi Intellilaat Team, Big Thanks for making the content like this it is really awesome content, i have 3 yrs of Java Developer and i found it very helpfull in quick revision before going to interview. I would request you to kindly make some content on Data Structure and Algorithm based on java, and Java Design Patterns

[bigtimecoder]

You are very beautiful and have a nice voice for this video. I'm going to write out your responses and read them aloud as you did a great job explaining.

[adamdost]

Upload more DevOps tutorials and practical, from your subscriber

[khushijain]

Please upload a video on interview questions based on advanced Java

[shishuranjan]

Hi team, you have done a really great work, plz make correction in question no:-6, may be Misprinting error

[rajatmishra]

Hello ma'am. I m a mechanical engineering student but want to enter it sector. Nd I don't know basics of any programming language. So can u tell me from which language should I start and which languages are currently most required by it companies to recruit freshers? And how much time will it approximately take for me to learn any of these languages?

[praveenkumar-xxel]

Good morning maa'm thank u so much very helpful interview questions