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

Why runnable interface is used in java?

1129

How garbage collection is done in java?

1046

There are two classes named classa and classb. Both classes are in the same package. Can a private member of classa can be accessed by an object of classb?

1483

What is the base class in java from which all classes are derived?

974

Can we declare a class as abstract without having any abstract method?

995

Which of the following classes will have more memory allocated?

1014

Does importing a package imports its sub-packages as well in java?

966

How objects of a class are created if no constructor is defined in the class?

1064

Give an example of use of pointers in java class.

1027

I want to persist data of objects for later use. What is the best approach to do so?

1052

What is the purpose of static methods and static variables?

1071

What are java packages?

1027

What are the performance implications of interfaces over abstract classes?

1 3653

How can you generate random numbers in java?

1047

When a lot of changes are required in data, which one should be a preference to be used? String or stringbuffer?

1238

Un-Answered Questions { Java Related }

Can we call the run() method instead of start()?

1034

Why did my jdbc code throw a rollback sqlexception? : BEA Weblogic

974

What is content pane in swing?

950

why does the datapower appliance convert my utf-8 characters to encoding?

952

Is java programming easy?

990

What will be the output of round(3.7) and ceil(3.7)?

1117

What is the difference between a jvm and a jdk?

1003

What is a get method?

1047

Explain about the main() method in java?

1100

How java is reliable?

848

How Can Cluster Communication Occur ?

1030

why Interface used?

986

What is the difference between ec2 and lambda?

893

Which is bigger double or float?

965

What is the use of arrays tostring () in java?

1039

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