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

Core Java Interview Questions

Questions Answers Views Company eMail

Can a class extend abstract class or interface? why

Wipro,

4 9659

What is the difference between Access Modifier and Access specifier?

1 7159

Is it possible to write method inside method

L&T,

4 11976

what is the default value of a variable char?(If not assigned)

4 7389

Write a java program to get a string of words and print the numbers of each word count in descending order

Logica CMG, Subex,

11 30785

Where can I find data structures question and answers with comprehensive working code written in Java

Amazon,

2415

if the memory capacity is 700 presently occupied by process is 690. then another process request space(40) how this situation handled in java.

Wipro,

4 6987

what is the logic inside any default constuctor?

2 4413

How TreeMap sorts the objects inside it?? suppose if have include one employee object and one car object. On what basis it will sort?

5 14648

Java is based on pass by reference or pass by value ..

L&T, Wipro,

6 10920

difference between arraylist and linkedlist otherthan performance

L&T,

2 10679

why pointer is not used in java?

3 11738

what are the difference between Java and .Net?

5 8527

can any body body expalin best definitions & best real time exaples for opps concepts.

Accel,

2268

What is map and hashmap? also tell the difference.

1 4327

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Un-Answered Questions { Core Java }

What does the append?

1001

Is java code slower than native code?

1061

Explain the inheritance?

974

What does super keyword do?

1073

Will set allow duplicates in java?

973

Difference between operator overloading and function overloading

1063

What is abstract class constructor called?

1004

What are the different types of sorting in java?

980

What are the differences between include directive and include action?

1190

Can you explain the final method modifier?

1010

Describe what happens when an object is created in java ?

1008

How variables are declared?

976

Why java is considered as platform independent?

1005

What carriage return means?

965

Can a final variable be manipulated in java?

981

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