Java Related Interview Questions
Questions Answers Views Company eMail

What is garbage collection in Java, and how can it be used ?

Infosys, HCL, Accenture, Wipro, Sara, SITS, TCS,

32 58358

Differentiate Vector and ArrayList?

Wipro, Max Telecom,

6 8363

Differentiate constructor and a method and how are it be used?


7 8882

What is an abstract class?

Wipro, DBS,

7 7712

How can final class be used?

Wipro, Accenture,

5 9658

By what default value is an object reference declared as an instance variable?


1 10921

Java support what type of parameter passing ?


7 12249

Explain the term serialization?


10 10074

Is there is any error if you have multiple main methods in the same class?

Wipro, Infosys,

10 11411

What is Overriding and how can it be used?

Consagous, Wipro,

7 13816

How is serialization used generally ?

3 4737

How are Swing and AWT be differentiated?


3 6033

Explain pass by reference and pass by value?

IBM, Wipro,

8 12286

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 8012

What happens when a main method is declared as private?

L&T, DELL, Infosys, Sun Microsystems,

22 37650

Un-Answered Questions { Java Related }

program A and B are analysed and found to have worst case running time greater than 150NlogN and N*N respectively. which program has the better guarantee after the running time for the large values of N(N>10000)? which program has the better guarantee for the running time of small program N (N<100)? which program will run faster on average for N=1000?


Hi Anyone know the model / questions of the Federal bank sample questions for the post of Specialist Officers - Programmers. Please post if anyone have..


How to reverse the singly linked list(In Node data members are(int data,int pointerTONext))


What are the steps to send and receive JMS message ?


what r advatages of websphere? & how to deploy?


Explain how data flows from view to db and reverse


Can I overload to string method


How to configure a website in iPlanet/SunOne?


Why sun introduce concept of anonymous class? What is need and real life use of anonymous class


how to deploy apache tomcat server to weblogic server in java


how do you Handle Front End Application data against DB with example?


How we store procedure in oralce for callable statements in jdbc


what is difference betweem home interface and remote interface?


How to Configure Open JMS?


Name the components that are termed to be Heavy-weight component but available in Light-weight components?