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

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Java Related Interview Questions

Questions Answers Views Company eMail

Write a program in java to establish a connection between client and server?

987

What is the final variable?

1 1269

Can an unreferenced object be referenced again?

1211

Write a program in java to calculate the difference between the sum of the odd level and even level nodes of a binary tree.

1079

Can we declare an interface as final?

1083

How many types of constructors are used in java?

1210

What is the difference between compile-time polymorphism and runtime polymorphism?

1014

Can you use this() and super() both in a constructor?

1001

What is an i/o filter?

5 1859

What is the difference between serializable and externalizable interface?

1123

Can we execute a program without main() method?

1055

What is the difference between static binding and dynamic binding?

1152

Can a class have an interface?

1012

Can we override the static methods?

1053

What do you understand by an io stream?

1064

Un-Answered Questions { Java Related }

What is json parser in java?

1071

What is the purpose of @stringlengthfieldvalidator annotation?

1122

How to split a string in java?

1149

If a class is declared without any access modifiers, where may the class be accessed in java programming?

1244

What are the advantages of Servlet over CGI?

1172

What is high level language in computer?

1039

I installed a new application, what do I need to do before I can access it from the web server url?

874

What is fail first in java?

1228

What is awt and swing in java?

999

Give example to differentiate between call by value and call by reference.

1075

Why are the destructors for base class and derived class called in reverse order when the program exits

2231

Can we use string in the switch case?

1059

What is @transient in hibernate?

528

What is incompatible types in java?

1053

How do you invoke a servelt?

1145

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