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 a Scrollbar and a ScrollPane?

1 7271

What is the difference between a Window and a Frame?

Infosys, ProKarma,

6 24830

Explain break statement and continue statement?

3 13397

What are field variable and local variable?

3 15368

What is the difference between a public and a non-public class?

2 7916

Explain the difference between scrollbar and scrollpane?

1 12489

What is static and a non-static inner class?

3 7800

What is the difference between abstract class and interface?

Aspire,

3 6663

Tell me the difference between an applet and a Japplet?

1 3889

What is an array and a vector? How they different from each other?

4 8180

What is exception and error? and what is the difference between them?

2 6547

Explain difference between final, finally and finalize?

Cognizant,

3 29478

Explain the difference between getAppletInfo and getParameterInfo?

1 6804

What is the difference between panel and frame ?

HCL, IBM, Raim Techno Solutions,

7 76057

Explain the differences between public, private, protected and static?

4 31778

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Un-Answered Questions { Core Java }

How big is a pointer?

1030

What is java dot?

952

What is boolean used for?

1038

How many ways can an argument be passed to a subroutine and explain them?

1030

what is optional in java 8?

1061

What is meant by data hiding/encapsulation?

1106

How does finally block differ from finalize() method?

1043

How does a for loop work?

988

Make a data structure and implement an algorithm to print all the files in a directory. (The root directory can have sub-directories too.)

1335

Explain the importance of thread scheduler in java?

1017

Why does java not support pointers?

1106

Are functions objects in java?

1078

How finally used under exception handling?

948

Can we execute a program without main?

1024

Explain 5 io best practices?

1034

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