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Java J2EE Interview Questions
Questions Answers Views Company eMail

please mail me the interview question based on java/j2ee

Wipro,

1527

Difference between Encapsulation and Abstraction

Fidelity,

4 9909

What is aggregation and composition ?

Fidelity,

1 5820

Can we add default constructor to Servlet?

Fidelity,

1 6085

How do u pass data from one jsp to another jsp?

Fidelity,

3 14150

what is diff btwn JNDI&JDBC?

CTS, JPMorgan Chase,

6 25300

how to enable conection poole shrinking??

CTS,

2 8971

what is the meaning of java.lang and java.util

 6 34614

how can connection with oracle10g with java

IonIdea,

3 10902

if a java file without any source code is valid java file?

SparkTG,

3 8534

why string is not taking as primitive datatypes but we r taking it as a class? why explain it?

HP, SparkTG,

2 5248

What is the difference between the synchronized() & static synchronized()?

HP, SparkTG,

2 7545

which one is more efficient int x; 1. if(x==null) 2.if(null==x) state which one either 1 or 2?

HP, SparkTG,

6 9175

how tha garbage collector know that the object will be deleted? on which algorithm the garbage collector works? what is the working principle of garbage collector? How manay types of garbage collectors r there?

HP, SparkTG,

1 6334

what is object type casting? give some example with related?

HP, SparkTG,

2 7624

Un-Answered Questions { Java J2EE }

What is ejb in java with example?

510

Which is faster jdbc or odbc?

495

how to run servlet program between two computer through internet ?

2535

What do you mean by bean managed transaction?

545

When should you use a singleton?

177




What is repository model?

193

what are the default ports you use to use websphere application sphere?

428

What are the causes of having ociw32.dll error in the database of web logic server?

577

What are the different points where weaving can be applied?

213

State the difference between strings and arrays.

592

What does it mean by node federation?

463

Explain the four types of container that the j2ee specification defines

482

How do you convert string to int in java?

548

Which is bigger float or double java?

513

What is spring boot rest api? : Spring Boot

155

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