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

Is it possible to cast an int value into a byte variable? What would happen if the value of int is larger than byte?

970

Differentiate between a constructor and a method? Can we mark constructors final?

1210

What is the difference between heap and stack memory?

1212

What do you understand by java?

1007

Explain 5 io best practices?

1057

What are the differences between throw and throws?

1084

What is the difference between jvm and jre? What is an interface?

1116

What is the numeric promotion?

1050

What is the multi-catch block in java?

1064

What are constants?

1070

Is java platform independent?

997

Can we have multiple classes in a single file?

1004

What is the exception hierarchy in java?

984

What is constructor chaining in java?

1081

What is the difference between state-based unit testing and interaction-based unit testing?

948

Un-Answered Questions { Java Related }

What is servlet mapping?

1048

Is alive in java?

971

What is the functionality of the oracle glassfish server? What added advantage it has on top of apache tomcat server?

764

What is hibernate in spring?

403

What is a persistence context?

378

What are spring applications?

408

What is the purpose of action tag in struts.xml?

1044

what are the differences between Generic server and application server in WebSphere environment?

3521

How to display names of all components in a Container?

2953

Which server is best for java?

936

Is entity framework an orm?

408

What is the difference between first level cache and second level cache?

456

What is the configuration files used in struts?

980

How does constructor injection work?

463

What exactly is java?

962

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