Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Java J2EE Interview Questions

Questions Answers Views Company eMail

How many types of packages are there in Java?

5 1455

Explain different data types in Java.

5 1440

Can we declare Pointer in Java?

5 1676

What is the default value stored in Local Variables?

5 1582

Difference in the use of print, println, and printf.

5 1332

Is it possible to make an array volatile?

4 1447

What is an object-oriented paradigm?

5 1556

What are the Memory Allocations available in JavaJava?

1 781

What is a singleton class in Java? And How to implement a singleton class?

2 915

Can you explain the Java thread lifecycle?

1 907

In the below Java Program, how many objects are eligible for garbage collection?

1 1060

What is JDK? Mention the variants of JDK?

1 904

What are Brief Access Specifiers and Types of Access Specifiers?

1 873

Explain Method Overloading in Java.

1 991

Give a briefing on the life cycle of a thread.

1 893

Un-Answered Questions { Java J2EE }

What is the usage of Hibernate QBC API?

500

What are the types of communication provided by jms?

895

Do you know what type of object is returned by resultset.getobject()?

1157

Where are the card layouts used?

1068

Which is faster jdbc or hibernate?

313

What are the types of methodology?

1103

Can more than a single table be mapped in cmp?

1020

What does hibernate.properties file consist of?

371

What do you mean by JVM?

1080

What is a virtual host?

890

Why do we use spring boot with microservices? : Spring Boot

423

What is weaving in spring?

448

How to optimize the javac output?

1023

What is string args [] in java?

1031

How big is a gigabyte?

1044

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