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

Core Java (6529)
Advanced Java (552)
Swing (223)
EJB (402)

Servlets (804)
Struts (701)
JDBC (771)
JMS (324)

SunOne (10)
J2EE (485)
Weblogic (694)
Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

when i write string s1="java"; in one program(application) and string s2="java"; in another application on the same jvm will both objects s2,s2 will refer to same memory location where "java" is stored in string pool.

2 5679

Is Struts Action class Thread Safe?

Wipro,

14 53540

Why operator overloading is not in Java?

2080

What is the difference between throw and throws? What is the similarity between try and throw?

2 5750

Is it possible to create Userdefined Unchecked Exception also?If Yes, give an example?

HCL,

1 4717

What is the need of "creating and throwing an UserdefinedException" when the "Exception" class is already available?

4 6766

Is it possible to create Userdefined Unchecked Exception also?If Yes, give an example?

ADP,

2 8863

What is JIT ?

Satyam,

4 10052

How to implement or use the singleton class in java?

3 8102

can we add two numbers without using arthematic operators? if possible how?

CTS,

5 9722

why the equals method can be override?when we override the equals method?

5 11112

why the wait,notify,notifyall methods are placed in object class?these are the thread concepts why these methods are placed in Object class?

Global Logic, Satyam,

2 11563

using equals method overriding which objects are compared?i.e same class objects or other class objects?Explain me.

4 6420

If set accepts only one argument then how can it compare two objects to avoid duplicates

5 7161

can u override the start() method of Thread class

5 20168

Un-Answered Questions { Java J2EE }

What is meta annotation in spring?

443

What is difference between jdbc and odbc?

1014

What is the principle difference between the working mechanism of jms and rpc?

863

How many bits are in a sentence?

1178

What are streams?

1126

What is the use of component scan in spring?

428

What does a void function return?

1013

What is cascade persist?

397

What are web technologies in java?

862

What role does the sessionfactory interface play in hibernate?

356

Why spring framework is needed?

393

What are the differences between throw and throws?

1074

What is difference between == and === in js?

1013

What is the hibernatetemplate class?

386

Can static methods be inherited?

1051

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