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Java J2EE Interview Questions
Questions Answers Views Company eMail

Wt is the main difference between Java and Java J2EE and Advanced java?

Wipro,

5 21764

What is "Java Native Interface" and how to use it?

IBM,

1 5221

can any one tell me how to implement tcng (Traffic Control Next Generation) with HTB (Hierarchical Token Bucket) in Java?which particular class or API is used for that?

Accenture,

2350

What is the diff. b/w Interfaces & Abstract class?

Ericsson,

6 8542

Which of these methods belong to Thread & Object class? join, yield, sleep, wait, notify

Ericsson,

3 8854

Can we instantiate Interfaces?

Ericsson,

7 13262

What do you mean by the term transient?

Ericsson,

5 9097

What are the two ways you can synchronize a block of code?

Ericsson,

5 12211

Can we call destroy() method inside the init() method? What happens when we do so?

Ericsson,

9 21406

Package1 and Package2 both have a method name lets say "methodA" with different implementation. When I import both the packages in a java class how can I use both the methods?

Ericsson,

7 9183

How can you sort dates?

TCS,

2 8083

Why to give the file name same as the public class name in java?

 3 5861

What happens when Two users requests for same action class? How the threads are controlled?

 4 7468

What is a domain structure? Does include cluster(s) and server instance(s)?

Oracle,

3 9246

Is there any use of an abstract class which has no methods and no attributes?

Wipro,

1 4176

Un-Answered Questions { Java J2EE }

What is the difference between shocks and struts?

491

Is void a wrapper class?

519

What is default isolation level in spring?

145

What is a datasource in java?

492

What are the different types of statements? How we can you use preparedstatement.

499




What initialize variables?

498

What is jms full form?

493

What does void * mean?

521

What is bom encoding?

539

What are the library functions in java?

537

How do struts work?

509

What is package protected in java?

511

Can I run seam with jdk 1.4 and earlier?

544

Mention some of the databases that hibernate supports?

167

what is synchronization and why is it important? : Java thread

574

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