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

Core Java Interview Questions

Questions Answers Views Company eMail

What is the use of ?this??

4 6702

What is meant by throwing an Exception?

Accenture,

4 9935

What is user defined exception?

4 9234

What is your platform?s default character encoding and how to know this?

TCS,

2372

What is the root class for all Java classes?

IBM, Infosys,

8 27171

Inorder to specify a container?s layout, which method is used?

1 4422

Name the methods that used to get and set the text label displayed by a Buttonobject?

1 4561

What methods are used in Servlet?Applet communication?

Satyam,

2246

What modifiers can be used with a local inner class?

2 10509

What modifiers are used with a top level class?

3 7273

What modifiers are used with an inner class which is a member of an outerclass?

1 4682

What modifiers are used for interface declaration?

7 10507

How a class can implement an interface?

SysArc,

5 9996

What releases of Java technology are currently available? What do they contain?

1 2625

What restrictions are placed on method overloading and method overriding?

5 31449

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Un-Answered Questions { Core Java }

What two classes are used to read data only?

1101

What is composition in java?

1291

Can you start a thread twice in Java?

1117

What does substring mean?

976

What is the purpose of format function?

1179

Can we create more than one object singleton class?

1038

Can an interface extend another interface?

1055

What is bufferedwriter?

973

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

2002

What is the exact difference in between unicast and multicast object? Where we will use?

999

What about features of local inner class?

1067

Can we sort a map in java?

1044

What is the difference between Java Program Constructor and Java Program Method, What is the purpose of Java Program constructor Please Explain it Breafily?

1043

What is a void method?

921

What happens when I use / and % with a negative numerator?

1043

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