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

Core Java Interview Questions

Questions Answers Views Company eMail

strings in java are objects.why?

2 5750

can we have function for truncating the sign as like abs in oracle.

1 3534

is there any function in java to make the text to blink?

6 10359

what is the purpose of class "Object" which is base class for all classes?

3 11585

How to convert String into primitive datatype.

6 16023

why we import both packages java.awt.*; and java.awt.event.*; as java.awt.*; can import all classes na. then what is the need of importing java.awt.event.*; ?

3 9910

what is the difference between a java object reference and c++ pointer?

4 13094

Hi.... I applied for the post of scientific officer/Engineer-SB(Programmer).Please post the syllabus and sample papers.

2060

what is tempplate pattern

IBM, RBS,

4 11651

what is bmg file and how to create that files?what will it contailn?

HCL, Probe Services,

2399

what is marker interface ? what is the necessity of it?

Accenture, Newgen,

5 11082

what release of java technology are currently available what do they contain?

1 3919

what is the J2EE BluPrints?

2197

why Runnable interface is preferable than extending the Thread class?

Aizza, College School Exams Tests, Sybrant Technologies, Wipro,

7 27284

Interface A { String test(); } Interface B { int test(); } Create a class AB which must implements both A & B interfaces.

Hewitt,

17 24637

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Un-Answered Questions { Core Java }

When will we use them?

1108

How many characters is 16 bytes?

1055

What do you know about java?

1021

What is stringwriter?

1028

What does 3 dots mean in java?

1039

Can we write method inside a method in java?

1054

What do you know about the garbate collector?

1092

How to print nodes of a Binary tree?

2310

Name few java 8 annotations ?

1090

What does n mean?

1057

Is there a jre for java 11?

1133

What are namespaces in java?

1092

What defines function?

1037

How many bits is size_t?

1036

What are the major advantages of internal iteration over external iteration?

1113

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