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Java J2EE Interview Questions
Questions Answers Views Company eMail

What is the difference between Stream Reader and Stream Writer?

4 17714

Which class should you use to obtain design information about an object

2 8477

Why we need to serialize the object

CTS, Geometric Software,

11 40341

a US company has filed my H1B visa ,, and i got selected in random number process.I wanna ask Could they ask regarding my languages(java,c++) or there will b just general questions?? And wat kind of questions will they ask in embassy interview??

2 5351

whatis the diff between ejb and servlet/jsp

TCS,

6 21111

can we have virtual functions in java?

Wipro,

11 47898

What is more advisable to create a thread, by implementing a Runnable interface or by extending Thread class?

5 11665

what's diff between struts 1.1 & 1.2

Wipro,

3 26238

can u explain about design patterns like singleton,builder,factory

EdgeSoft,

1 2423

why applet doesn't have main? isn't possible a program with out main?

TCS,

9 22645

what is an virtual function

TCS,

2 6246

what is the difference b/w design pattern and architecture

Covansys,

4 9472

wa is connection pooling? how do u create connection pooling?wat is use connection pooling?

Covansys,

1 6361

What is emant by API? is it related to java only or it is common for all OOPS supporting language?

3 5913

What is means by DLL file means ? What is the use of DLL file? What are the contents of DLL file?

4 13225


Un-Answered Questions { Java J2EE }

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


What is a constructor overloading in java?

1119


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

1077


How is declarative handling of exceptions done in struts ?

999


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

1058


Can we return resultset in java?

985


What is latest hibernate version?

485


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

994


What is the difference between break and continue statements?

1117


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

1123


Find Best Job Vacancies across the world on Jooble!

126


Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance

2415


What is the difference between filters and interceptors ?

1293


What is a classloader in java?

1080


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