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Java Related Interview Questions
Questions Answers Views Company eMail

What are legal modifiers that we can use to declare an inner class?

Infosys,

1 2593

What is difference between “==” and equals()?

IBM,

1 2401

Why do we need to override equals() and hascode() method of object class?

Cognizant,

1 2567

How to override equals() and hashCode() method in java?

Wipro,

1 2428

Are the equals() and hashCode() protected methods of object class?

Avaya,

1 2807

What are the uses of final, finally and finalize in java?

Agiline, FINO PayTech, HCL,

2 2966

Describe OOP in java?

Syntel,

2 3308

What is difference between overloading and overriding?

Accenture,

2 3971

Why do we need main method to execute a java program?

Virtusa,

1 3173

How do we make a class serialize?

Syntel,

3 3381

What is serialVersionUID and what is its need?

KPIT,

1 2889

What is deserialization and how do we do deserialization?

Synechron,

3 3616

What is difference between compatible and incompatible changes in serialization?

Synechron,

1 3468

What is Difference between Serializable and Externalizable in Java serialization?

Cognizant, IBM,

1 3351

What is an object in Java and what are its benefits?

IBM,

4 3923

Un-Answered Questions { Java Related }

Explain about oops concepts.

623

Why do we need spring batch?

160

What best practices should you follow while writing multithreaded code in java?

532

Is it possible to compare various strings with the help of == operator? What are the risks involved?

605

What is ejbdoclet?

517




Do you know how are multi-byte characters used with weblogic jdriver?

562

Mention and explain the types of advice in spring?

142

How do you declare a variable?

615

What is the difference between hibernate and spring?

144

When we should use serialization?

555

Can I overload to string method

960

What are the functions of the servlet container?

1021

what is the difference between websphere and weblogic?

477

When is finally block not called?

576

What does action do in struts?

527

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