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Java J2EE Interview Questions
Questions Answers Views Company eMail

What is Connection Pooling?

Enteg Technologies, Infosys, Polaris,

1 6680

What are Benefits of Connection Pooling?

2 6656

What is Hash Code in Java?

Cognizant,

6 16296

What are uses of Hash Code?

Cognizant,

2 7630

What is the use of ActionErrors in Struts?

HCL, TCS,

2 8438

I have written a program to connect to database using odbc.Can this Application run on any Platform????

2 4777

I have 100 records in a table with two rows. I need to display 10 records per page like Google Search. I need only the Logic(Pagination) in Pure Java. No JSP and all..Thanks in Advance...

Cybernet,

2 8129

IS method overriding is Duplication of Methods?

CybAge,

5 10679

Hai all.Can i develope Struts action class without execute(-,- ,-,-)method.Ifd it's possible plz provide some sample code.

TCS,

3 13846

Hai all.What is the use of tag in struts application.

CA, TCS,

3 9043

can someone tell me how does preparedstatement works? its an interface and where is the implementation?

Satyam, TCS,

3 8684

please tell me the name and url path for type-4 driver ?

2 3290

Hi Friends. I want complete technical flow of j2ee project with following technologies. jsp , servlet , Struts , Hibernate , (should follow mvc-2 design pattern) . with DAO ,DTO SERVICE layers .

Infosys,

1 4877

What is servlet preinitialization?

iFlex,

3 10223

What is servlet preinitialization

iFlex,

1 5568


Un-Answered Questions { Java J2EE }

How is declarative handling of exceptions done in struts ?

1001


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

994


Realized?

2256


Differentiate between static and non-static methods in java.

1116


How to create a base64 decoder in java8?

1131


How to sort array in descending order in java?

986


What is difference between @controller and @restcontroller in spring?

536


i want test pattern of zylog company and some examples also

2855


Write a program to find the whether a number is an Armstrong number or not?

1095


explain different ways of using thread? : Java thread

1079


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

1032


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

2658


What are the differences between heap and stack memory in java?

1126


How can you inject java collection in spring?

503


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

1078