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Core Java Interview Questions
Questions Answers Views Company eMail

In method overloading ,if i change the return type to Long instead of INT,is the program execute

HCL,

6 8242

wat is class level lock and object level lock

HCL, Persistent,

3 19721

is it possible to add a object in a HASHMAP

HCL,

6 6342

why we cannot declare static variable inside a static method

4 7011

why using interface interface ?

1066

why use interface? if interface declear a method implement in class. why direct implement method in class

HCL,

1 1396

different between exception and error? explaim check and uncheck exception

4 4764

Difference between interface and abstract class with ex.

Cognizant, Tech Mahindra,

4 6805

what is Thread priority?

Tech Mahindra, Wipro,

4 5082

Distinguish method overloading and overriding

Tech Mahindra,

2 3496

Distinguish method overloading and method overriding

Tech Mahindra,

4 4638

What is thread priority?

Tech Mahindra,

1 4303

Why Over riding is Run Time Polymorphism?

Genpact,

3 13324

How many objects are created when we create String class object using new operator?

Mind Tree,

9 21779

What is onClassLoader in java?

Cap Gemini,

5 6246


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Un-Answered Questions { Core Java }

Explain the importance of import keyword in java?

132


What restrictions are placed on method overloading in java programming?

134


Is java a compiler?

123


Is there any difference between synchronized methods and synchronized statements?

149


What is a final class in java?

113






What is the use of conditional statement?

123


Who developed java?

148


Explain access specifiers?

192


Which of the classes will have more memory allocated?

149


When will you define a method as static?

154


Is the milky way in a void?

123


Are generics important java?

104


What function extracts specified characters from a string?

168


Can we override tostring method in java?

106


What is java ceil?

125