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Core Java Interview Questions
Questions Answers Views Company eMail

Which class is the immediate superclass of the Container class?

1 5786

Name the immediate superclass of the MenuComponent class?

1 3409

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

1 3464

Which containers may have a MenuBar?

1 3781

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

3 5052

Which containers use a FlowLayout as their default layout?

3 6091

Which java.util classes and interfaces support event handling?

2 10380

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

3 8792

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

2 3379

Name the package that always imported by default?

4 10394

Who developed JScript language?

3 4569

Is Java is 100% pure OOPS? Explain?

ANZ,

27 26038

Why are the methods of the Math class are static?

1 7206

Does Java support multiple Inheritance?

12 15876

What are null interfaces? Give some examples?

2 6120


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Un-Answered Questions { Core Java }

What is bool mean?

184


What are the differences between abstract class and interface?

188


Is void a return type?

177


Difference between ‘>>’ and ‘>>>’ operators in java?

228


What are the important features of Java 11 release?

231






What is super?

208


Differentiate between the constructors and methods in java?

193


Can a class be a super class and a sub-class at the same time? Give example.

203


What is the difference between error and an exception?

207


What is the final class modifier?

218


Can we use a default constructor of a class even if an explicit constructor is defined?

207


What is 16 bits called?

152


How many bytes is 255 characters?

186


What is type inference in java8?

213


how to convert Java project into Maven ?

226