Java Interview Questions and Answers | Java Tutorial | Java Online Training | Edureka

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This tutorial covers Java Interview Questions on:
4:08 Basic Java Interview Questions
38:51 OOPS Interview Questions
58:35 Servlets
1:07:37 JDBC
1:15:26 Spring
1:32:22 Hibernate

📢📢 𝐓𝐨𝐩 𝟏𝟎 𝐓𝐫𝐞𝐧𝐝𝐢𝐧𝐠 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬 𝐭𝐨 𝐋𝐞𝐚𝐫𝐧 𝐢𝐧 𝟐𝟎𝟐𝟒 𝐒𝐞𝐫𝐢𝐞𝐬 📢📢

#Java #Javatutorial #Javaonlinetraining #Javaforbeginners #JavaProgramming #JavaInterviewQuestions

How it Works?

1. This is a 7 Week Instructor led Online Course, 45 hours of assignment and 20 hours of project work

2. We have a 24x7 One-on-One LIVE Technical Support to help you with any problems you might face or any clarifications you may require during the course.

3. At the end of the training you will be working on a real time project for which we will provide you a Grade and a Verifiable Certificate!
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About the Course

Edureka's Advanced Java/J2EE and SOA training and certification course is designed for students and professionals who want to be a Java Developer. This is a 42 hour course which will cover both core and advanced Java concepts like Database connectivity, Threads, Exception Handling, Collections, JSP, Servlets, XML Handling etc. We will also learn various Java frameworks like Hibernate and Spring. During our Java/ Certification training, our instructors will help you:

1. Develop the code with various Java data types, conditions and loops.
2. Implement arrays, functions and string handling techniques.
3. Understand object oriented programming through Java using Classes, Objects and various Java concepts like Abstract, Final etc.
4. Implement multi-threading and exception handling.
5. Use parse XML files using DOM and SAX in Java.
6. Write a code in JDBC to communicate with Database.
7. Develop web applications and JSP pages.
8. Interact with the database using hibernate framework.
9. Write code with spring framework components like Dependency Injection and Auto Wiring.
10. Implement SOA using web services.

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Who should go for this course?

This course is designed for professionals aspiring to become Java Developers. Programmers, Web Developers, Web Designers, Programming Hobbyists, Database Administrators, Youngsters who want to kick start their career are the key beneficiaries of this course.
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Why learn Java?

Java is a general-purpose, class-based, object-oriented computer programming language that was designed by James Gosling at Sun Microsystems in 1995.

Key Highlights of Java:
Platform Independent: This allows programmers to develop applications that can run on any operating system.

Usability of Java: Java is most widely used programming language. It is present everywhere. It really doesn't matter which domain you are working in, you will surely come across Java sooner or later!

Open Source: The good news is that Java is available for free! All the development tools and the environment (JRE & JDK) that is used to develop Java applications are absolutely free of cost.

Android: Irrespective of the fact that you are tech savvy or not, most of us are badly bitten by the Android bug! Android is in great demand today and fortunately you need Java for Android development. Hence, the importance of Java has increased even more.

Hadoop: Hadoop is one of the most trending framework for processing Big Data. It has been designed and developed in Java.

In spite of having a tough competition on the server side from Microsoft and other companies, Java is doing extremely well on mobile platforms, thanks to Android! It has also been the primary language for Hadoop Developers.

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4:15 What is the difference between JDK, JRE and JVM?
5:50 What is synchronization?
7:38 What are the differences between processes and threads?
13:36 What are Wrapper classes?
17:18 What purpose does the keywords final, finally and finalize fulfill?
21:20 What is the difference between StringBuffer and StringBuilder?
24:58 What are the differences between Heap and Stack memory?
39:03 What is the difference between Abstract classes and Interfaces?
53:14 What is the difference between method overloading and method overriding?
55:03 Can you ovveride a private or static method in Java?
55:43 What is multiple inheritance and does java support it?
59:03 What is a Servlet?
1:00:41 What is the difference between Get and Post methods?
1:04:45 What is the lifecycle of a servlet?
1:16:01 What is Spring?

dominykaskisonas
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This session was too good and helpful...
Thank you very much for this effort this really means a lot to us n i really enjoyed n learned things more clearly...

meghagupta
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A very useful Video to prepare for Java interview. Thank You for the Video!!!!

iti_pooja
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God bless you for your video and explainations! I am studying 2 hours before the interview. It's going to be fun!

DonAngelo
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I have a question about question 18. Why par.foo() is "I am foo in super"?. par is a reference object of "parent" class which is pointing to "child" class, right? then par.foo() should give : - I am foo in child ....

vijayalakshmi
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Very informative video and nicely explained.Very well done.Thank you so much for sharing with us.

mokshadanayak
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Best revision video for Java OOPS and other basic questions before your onsite interview. Thank you.

chatmin
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object of an abstract class can not be created even in run time. The constructor in abstract class is to initialize the fields.

rakesh
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Very helpful...session was too good : )...Covers whole Java(Core+Adv).

amirkhan
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very superb video.. i have enjoyed so much...

MrSampathmca
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So far, This is the best ever resource for understanding java which I have seen. This guy Ishant does magic and everything gets into the brain xD. Thanks a lot, Edureka and Ishant

Srijan_
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I am in love with this teacher/ Instructor 😍❤❤

thatsdeep
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Awesome! I subscribed because you helped me to understand and remember java concepts

ltmikepick
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Awesome explanation hoping more videos

b.vishnuvardhan
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One of the best explanation over this channel thanks for sharing your knowledge with us god bless

Sapvision
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Many thanms for amazing lesson and knowledge!!!

mibo
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I understood a lot please do more videos thank you so much!!

vinithashetty
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This was simply awesome.. looking forward to see more videos from you...

bibekroy
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Perfect video to recall and learn all the JAVA concepts

noothivinun
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Thank you so much for the detailed video.

nisargadattamathe