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 5527

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

1 3398

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

6 9922

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

3 11303

How to convert String into primitive datatype.

6 15511

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 9578

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

4 12765

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

1958

what is tempplate pattern

IBM, RBS,

4 11279

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

HCL, Probe Services,

2308

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

Accenture, Newgen,

5 10686

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

1 3765

what is the J2EE BluPrints?

2083

why Runnable interface is preferable than extending the Thread class?

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

7 26855

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

Hewitt,

17 23535

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Un-Answered Questions { Core Java }

Can we make the abstract methods static in java?

1007

What is not object oriented programming?

880

How does regex work?

919

What are the different http methods?

986

What is the purpose of checked and unchecked exceptions in JAVA?

965

What is the difference between == and === javascript?

1105

What are inbuilt functions in java?

1013

What is the default execution method in java?

1143

What is lossy conversion in java?

1132

What is difference between float and double?

920

How many bytes is string in java?

1166

Is map sorted in java?

1015

What is difference between path and classpath?

1089

Can you have two constructors in java?

910

What do you know about the garbage collector in java?

1048

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