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

Core Java Interview Questions

Questions Answers Views Company eMail

Which class is the immediate superclass of the Container class?

1 7180

Name the immediate superclass of the MenuComponent class?

1 4756

To obtain design information about an object, which class in used?

1 4693

Which containers may have a MenuBar?

1 5385

In what type of containers, Border layout is a default layout?

3 7016

Which containers use a FlowLayout as their default layout?

3 8187

Which java.util classes and interfaces support event handling?

2 12425

To set the position and size of a component, which methods are used?

3 10700

What are the allowed, non-Unicode letter characters that can be used as the first character of an identifier?

2 5062

Name the package that always imported by default?

4 13080

Who developed JScript language?

3 6541

Is Java is 100% pure OOPS? Explain?

ANZ,

27 40649

Why are the methods of the Math class are static?

1 8694

Does Java support multiple Inheritance?

12 21400

What are null interfaces? Give some examples?

2 7915

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Un-Answered Questions { Core Java }

What do you understand by final value?

1008

What is the difference between the reader/writer class hierarchy and the inputstream/outputstream class hierarchy in java programming?

1064

What is locale?

985

Define an enumeration?

988

What are data types in oop?

997

What is t in generics in java?

1014

Can we print null in java?

1015

What does the append?

951

what are synchronized methods and synchronized statements? : Java thread

954

Describe the various concepts related to object oriented programming (oop).

985

What is local class in java?

1035

What is string length in java?

902

What is field name?

961

How java uses the string and stringbuffer classes?

1009

Why convert an applet to an application?

1050

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