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Java Related Interview Questions
Questions Answers Views Company eMail

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

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

32 98000

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 29261

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

Wipro,

7 29899

What is an abstract class?

DBS, Wipro,

8 28349

How can final class be used?

Accenture, Wipro,

5 27960

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

Wipro,

1 26849

Java support what type of parameter passing ?

Wipro,

7 20813

Explain the term serialization?

Wipro,

10 32209

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

Infosys, Wipro,

10 34370

What is Overriding and how can it be used?

Consagous, Wipro,

7 33878

How is serialization used generally ?

 3 21695

How are Swing and AWT be differentiated?

Wipro,

3 22786

Explain pass by reference and pass by value?

IBM, Wipro,

8 33153

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 25976

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 76072

Un-Answered Questions { Java Related }

What is the java api?

1025

What is an object in java and how is it created?

1181

What do you know about validation plugin ?

1056

Realized?

2298

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

2457

How is declarative handling of exceptions done in struts ?

1031

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

1130

What do you understand by casting in java language? What are the types of casting?

952

What is a constructor overloading in java?

1154

What is lazy class?

500

explain different ways of using thread? : Java thread

1117

What is the difference between break and continue statements?

1155

Are jvm’s platform independent?

1012

What is the resourcebundle class?

1042

what is reflection api? How are they implemented?

1140

For More Un-Answered { Java Related } Questions Click Here