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

what is bytecode? watz the difference between machine code and bytecode?

Oracle,

9 30584

watz the difference between abstract class and interface? Which one u ill choose as a designer?

Sonata,

1 5385

can we create instance for interface in java?

4 20940

What is Session reduplication and how its done?

2039

Which all r Final classes in java except string?

HCL,

5 34554

what is bytecode ?explain in detail and watz the difference between bytecode and machine code?

Lucent,

6 19460

What is the difference between Get and Post Method?

T3 Softwares,

12 21393

What is the difference between java and .Net?

Bosch,

39 109659

What is the difference between jsp and servlet?

Symphony,

6 13165

Diff between C++ and java?

TCS,

9 12121

can we create a instance for intwerface?

3 6516

y cant i declare method like public final static show()

3 5648

what is difference between String buffer and String builder?

Benchmark,

5 12444

what is the use of custom tags? with example?

Photon,

1 4756

what is the life cycle of jsp?

Photon,

3 8674

Un-Answered Questions { Java J2EE }

What does nullpointerexception mean?

1089

What class is at the top of the AWT event hierarchy?

1107

Explain the reason behind ending a program with a system.exit(0)?

1090

What is an empty list in java?

982

Can you explain how can os authentication be connected with weblogic jdriver for oracle and connection pools?

987

What are actual parameters?

1039

Why do we need singleton class?

1007

does java support pointers?

998

why do we need a digital signature?

1106

How a servlet is unloaded?

1092

what is mena by object block any what is the use of that

2216

Is synchronized thread safe?

419

What is the main difference between java platform and other platforms?

1108

Can I enable requests to a jdbc connection pool for a database connection to wait until a connection is available?

902

How many boolean functions are there?

966

For More Un-Answered { Java J2EE } Questions Click Here