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

Suppose there is an array list [10,5,20,19,15,24].Print them in ascending & descending order in collection framework concept ???

Cognizant,

2 7208

What is Connection Pooling ??? How we set up a particular connection within connection pooling ????

Cognizant,

2 7798

What will happen if we cannot mention "finally" in Java Program ???

PWC,

3 7422

What is default specifier ??? Use of default specifier ???

Cognizant, Syntel,

4 8787

write a program to create an arraylist with string(add,remove) operation.and value should be enter through keyboard.

Axcend,

2247

write a program to create an vector with string(add,remove) operation.and value should be enter through keyboard.

Axcend,

2199

write a program to create an arraylist and listeterator.and value should be enter through keyboard.

Axcend,

1 4068

write a program to create an vector and listeterator.and value should be enter through keyboard.

Axcend,

1 4012

What will happen if we write code like: try{}catch(exception e)catch(IOException i)

CTS, TCS,

6 11464

How could Java classes direct program messages to the system console, but error messages, say to a file?

2 9442

Is Java Class Threadsafe ????? How to make Java class Thread safe??

Cognizant,

2 8098

why we are using vo,dao and dto design patterns in struts framework

Wipro,

3 14816

why java does not have operator overloading?

2 5977

difference between java ,c#&java,c++

3 5877

is servlet,struts are threadsafe or not.please telme correct answer

Microsoft,

1 4561

Un-Answered Questions { Java J2EE }

How to create a base64 decoder in java8?

1128

what are the different modes of archival? Explain each mode in two lines each?

993

What is the difference between equals() and == in java?

1032

hi actully i hav form columns with origin and destination names .as like as i need to create one more column with name amount. my requirement is when i select origin and destination columns automatically i need to get amount from database.how can i. please tel me with relative code

2859

Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2657

Differentiate between static and non-static methods in java.

1115

What are the contents on web.xml in struts application ?

1058

Realized?

2250

What is the difference between filters and interceptors ?

1293

How can you inject java collection in spring?

501

What is parsing in java?

1024

What is java string pool?

1074

What is a constructor overloading in java?

1119

Write a program to print count of empty strings in java 8?

1077

Can we return resultset in java?

985

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