Java Related Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

can we have virtual functions in java?

Wipro,

11 47460

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

5 11419

what's diff between struts 1.1 & 1.2

Wipro,

3 26072

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

EdgeSoft,

2356

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

TCS,

9 22269

In my project i need to use either JSF or Struts.Here i need some clarification about them and which IDE is better for JSF development? Please post your valuble answers ASP!

Infosys,

4 7526

what is an virtual function

TCS,

2 6099

what is the difference b/w design pattern and architecture

Covansys,

4 9303

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

Covansys,

1 6269

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

3 5774

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

4 13078

what is BUSINESS DELIGATE PATTERN,DAO,VO,DTO?

BOB Technologies, TCS,

6 28797

without using arthematic operation ,how can you write the logic for adding/substraction/multiplication?

Tanla Solutions, Wipro,

7 13761

How to create an instance of a class if the class has private constructor?

3 9629

what is an ejb object?

Bally Technologies, HCL, Siemens,

5 20296

Un-Answered Questions { Java Related }

How do I restrict access to servlets and jsps? : BEA Weblogic

1013

Can one thread block the other thread?

1045

What is j2me in mobile computing?

967

What does n mean in java?

989

List out the difference between ServletConfig and ServletContext?

1064

How arrays are stored in memory in java?

995

What do you mean by spring beans?

430

What is message oriented middleware?

882

explain copyonwritearraylist and when do we use copyonwritearraylist?

966

State some advantages of java?

1267

Which event is fired at the time of setting, getting or removing attribute from application scope?

1158

What is the SimpleTimeZone class?

2294

What is boolean query?

1000

Should a main method be compulsorily declared in all java classes?

1086

Write a program to find maximum and minimum number in array?

1012

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