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 66791

Can a lock be acquired on a class?

3 12585

Can an abstract class be final?

10 63570

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

2 6691

Difference between Interface & Abstract class?

5 10298

Difference between String & StringBuffer

IBM, Infosys, Tech Mahindra, Wipro,

16 58083

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

1 5692

Does java support multi dimensional arrays ?

6 14591

what are ER diagrams?

2 6576

Explain Event handling in AWT?

Infosys, TCS,

1 7405

Explain Stream Tokenizer?

4 11374

Explain about Superclass and Subclass?

6 13825

What is lazy activation?

CMC,

2 7369

Howmany address lines are required to addressing 1 MB memory?

Beatroot Technologies, CSC, HCL, Hexaware, IBM,

8 30710

How the elements are organized in GridBagLayout?

1 4079

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Un-Answered Questions { Core Java }

What are the two ways to create a thread?

1059

What is constant in programming?

1176

What is the use of runnable interface?

1233

What is a Presistent Object?

1287

Can long be null in java?

1079

Which graphs are functions?

1013

What is a methodologist?

1133

What is package protected in java?

1024

What is reflexive association?

1870

What is difference between == and === in js?

1059

What restrictions are placed on method overriding?

1238

What is an exception in java?

1154

What is exception propagation?

1184

Why do you canvas?

1086

Can a final variable be null?

1054

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