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

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

Why runnable interface is used in java?

1200

How garbage collection is done in java?

1107

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?

1550

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

1041

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

1048

Which of the following classes will have more memory allocated?

1070

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

1024

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

1128

Give an example of use of pointers in java class.

1078

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

1109

What is the purpose of static methods and static variables?

1133

What are java packages?

1091

What are the performance implications of interfaces over abstract classes?

1 3760

How can you generate random numbers in java?

1100

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

1293

Un-Answered Questions { Java Related }

State some of the features present in the web sphere?

828

What are latest features introduced with java 8?

1158

Which method is used to create the daemon thread?

1007

Explain how does the JMS work with the J2EE?

941

What is protected in java?

1052

Explain the client-server architecture.

1055

Why are the objects immutable in java?

1057

What is j2ee called now?

1048

How long does it take to learn spring and hibernate?

470

How many types of voids are there?

1031

When should I use a custom login module versus a TAI to assert identity information?

913

How to rollback a JDBC transaction?

1154

What are the action classes in struts?

1064

What are the java backend technologies?

952

What is beanfactoryaware in spring?

493

For More Un-Answered { Java Related } Questions Click Here