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 6704

What is meant by throwing an Exception?

Accenture,

4 9937

What is user defined exception?

4 9236

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 27180

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

1 4423

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

1 4563

What methods are used in Servlet?Applet communication?

Satyam,

2247

What modifiers can be used with a local inner class?

2 10512

What modifiers are used with a top level class?

3 7276

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 10514

How a class can implement an interface?

SysArc,

5 10002

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 31450

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Un-Answered Questions { Core Java }

Explain the usage of this with constructors?

1028

What is meant by inheritance and what are its advantages?

1106

Can the interface be final?

1009

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3362

What is the difference between method and means?

1078

What is an i/o filter?

1821

Is null a string or object in java?

970

Do we need to manually write Copy Constructor?

1033

Which is better arraylist or vector?

1021

What is the final class?

1059

If I only change the return type, does the method become overloaded?

926

How we can run a jar file through command prompt in java?

971

Which number is denoted by leading 0x or 0x in java?

1044

What is the static method?

1077

How can you write a loop indefinitely in java programming?

1028

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