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

Core Java Interview Questions

Questions Answers Views Company eMail

finalize() method?

5 11311

What is the use of bin and lib in JDK?

TCS,

8 35499

What are Transient and Volatile Modifiers?

SAP Labs, TUP Manila,

3 15407

Difference between this(), super()?

College School Exams Tests, Oracle,

12 36588

What is a package?

2 5856

What is casting?

3 6367

Difference between an argument and a parameter?

Accounting, HCL, IBM, Quinnox,

10 47738

Explain final, finalize() and finally?

Accenture, TCS,

11 37636

What are different types of access modifiers?

3 8238

What are Encapsulation, Polymorphism and Inheritance?

5 24782

Explain different ways of passing arguments to sub-routine?

1 5694

Difference between Superclass and Subclass?

7 48334

what modifiers are used with top-level class?

2 6077

What are inner and anonymous class?

3 7038

what is the Diff. between Access Specifiers and Access Modifiers?

BMC, Cyber Shot, Infosys, VTS, Wipro,

39 122882

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Un-Answered Questions { Core Java }

What is annotation in java?

999

What is illegal identifier in java?

974

What is singleton class example?

975

Can inner class final?

1054

How can you handle java exceptions?

975

How do you do math powers in java?

1018

What are java methods?

1049

How can you traverse a linked list in java?

1080

Define how can we find the actual size of an object on the heap?

1128

What is the purpose of a default constructor?

1049

What is boolean used for?

991

How much ram can a 64 bit processor theoretically?

837

Can we override protected method in java?

1002

Is java owned by oracle?

961

How do you sort a string in java?

912

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