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

Core Java Interview Questions

Questions Answers Views Company eMail

Difference between Applet & Application?

6 66568

Can a lock be acquired on a class?

3 12458

Can an abstract class be final?

10 63228

Can an anonymous class be declared as implementing an interface and extending a class?

2 6580

Difference between Interface & Abstract class?

5 10109

Difference between String & StringBuffer

IBM, Infosys, Tech Mahindra, Wipro,

16 57480

Does garbage collection guarantee that a program will not run out of memory?

1 5603

Does java support multi dimensional arrays ?

6 14430

what are ER diagrams?

2 6465

Explain Event handling in AWT?

Infosys, TCS,

1 7306

Explain Stream Tokenizer?

4 11186

Explain about Superclass and Subclass?

6 13588

What is lazy activation?

CMC,

2 7273

Howmany address lines are required to addressing 1 MB memory?

Beatroot Technologies, CSC, HCL, Hexaware, IBM,

8 30434

How the elements are organized in GridBagLayout?

1 4005

Post New Core Java Questions

Un-Answered Questions { Core Java }

What is the preferred size of a component in java programming?

995

What methods are used to get and set the text label displayed by a button object?

1012

What are the 6 boolean operators?

1095

What is runtime polymorphism or dynamic method dispatch?

1004

What is ascii format?

986

What is a list in java?

944

What is Mutex (Mutual Exclusion Object) ?

1143

State some advantages of java?

1224

What function extracts specified characters from a string?

997

what is deadlock? : Java thread

1005

What is the use of using enum to declare a constant?

1024

Is math an abstract class in java?

1002

Is singleton thread safe in java?

975

What do you know about the garbate collector?

1012

What is codebase?

996

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