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 11701

What is the use of bin and lib in JDK?

TCS,

8 36083

What are Transient and Volatile Modifiers?

SAP Labs, TUP Manila,

3 15686

Difference between this(), super()?

College School Exams Tests, Oracle,

12 37376

What is a package?

2 6054

What is casting?

3 6631

Difference between an argument and a parameter?

Accounting, HCL, IBM, Quinnox,

10 48401

Explain final, finalize() and finally?

Accenture, TCS,

11 38355

What are different types of access modifiers?

3 8527

What are Encapsulation, Polymorphism and Inheritance?

5 25224

Explain different ways of passing arguments to sub-routine?

1 5882

Difference between Superclass and Subclass?

7 48815

what modifiers are used with top-level class?

2 6289

What are inner and anonymous class?

3 7293

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

BMC, Cyber Shot, Infosys, VTS, Wipro,

39 125490

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Un-Answered Questions { Core Java }

I want to re-reach and use an object once it has been garbage collected. Define how it’s possible?

1066

why are there separate wait and sleep methods? : Java thread

1076

Explain the selection sort algorithm?

1106

What is a numeric string?

1070

What are instance variables?

1123

What are the actions that can occur when a thread enters blocked state?

1110

Can we override compareto method?

986

What is an example of a keyword?

1160

What is nan in java?

1050

How to use Media tracker Class.

1172

How do you compare two strings lexicographically?

975

Explain java coding standards for methods?

1083

What are triggers in DB? Explain their types. How do they work?

1137

What happens when main () method is declared as private?

1183

What are keywords give examples?

1099

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