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 11309

What is the use of bin and lib in JDK?

TCS,

8 35498

What are Transient and Volatile Modifiers?

SAP Labs, TUP Manila,

3 15404

Difference between this(), super()?

College School Exams Tests, Oracle,

12 36583

What is a package?

2 5856

What is casting?

3 6365

Difference between an argument and a parameter?

Accounting, HCL, IBM, Quinnox,

10 47734

Explain final, finalize() and finally?

Accenture, TCS,

11 37632

What are different types of access modifiers?

3 8234

What are Encapsulation, Polymorphism and Inheritance?

5 24777

Explain different ways of passing arguments to sub-routine?

1 5693

Difference between Superclass and Subclass?

7 48329

what modifiers are used with top-level class?

2 6076

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 122852

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Un-Answered Questions { Core Java }

How much ram can a 64 bit processor theoretically?

837

How do you convert boolean to boolean?

1090

Explain about strings in java?

1029

Explain about procedural programming language or structured programming language and its features?

1039

Can I extend singleton class in java?

1047

What does string intern() method do?

1051

What is the difference between yielding and sleeping?

1046

What is run time allocation?

979

Give an example of use of pointers in java class.

975

What does singleton mean in java?

954

Is string a wrapper class?

975

In a container there are 5 components. I want to display all the component names, how will you do that?

2143

What is collections framework?

1107

Why lambda expression is used in java?

1003

If a method is declared as protected, where may the method be accessed in java programming?

949

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