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

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

What is Mutex (Mutual Exclusion Object) ?

Ciena,

1142

Give differences between Quicksort &Mergesort. When should these sorts be used andwhat is their running time in java?

Genpact,

1233

What do you mean by JVM?

Ericsson,

1072

When does a class need a virtual destructor?

Flextronics,

1006

How is tree Mirroring implemented?

Fidelity,

1065

How can u increase the heap size in the memory?

Infosys,

1009

What do you understand by abstract classes?

HCL,

1063

How do you implement tree mirroring in java?

EXL, HCL,

1066

Explain the key functions of data binding?

Akamai Technologies, Aspire, Impetus, Infogain, Tavant Technologies, Virtusa,

1014

What is Major and importance difference between for and foreach loop ?

Infosys,

1139

What is the use of generics? When was it added to the Java development Kit?

Impetus,

1012

Explain the difference between a Thread and a Process.

Ciena,

992

How many JVMs can run on a single machine and what is the Just-In-Time(JIT) compiler?

Global Logic,

1056

Does java support multiple inheritance or not?

Hexaware,

1093

How can you read content from file in java?

HCL,

998

Un-Answered Questions { Java Related }

Define hibernatetemplate?

509

What is Java Reflection API? Why it’s so important to have?

1154

Give me an example of array and linked list? Where they can be used?

1001

What is the scope of a bean by default in spring?

438

What is concurrent hashmap and its features?

1085

What is a delimiter in java?

877

can we stop the execution of a method before completion?

3048

Which one is the default transaction factory in hibernate?

375

How do I receive a ResultSet from a stored procedure?

971

What is the difference between session and entity beans?

1109

What are the jdbc statements?

971

What protocol does jdbc use?

972

Write a java program to generate fibonacci series ?

1067

What are the different roles a user can have in wcs?

815

What do you mean by bean autowiring in spring?

446

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