Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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JDBC (771)
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Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

Name few java.lang classes introduced with java 8 ?

1006

Does java allow overriding static methods ?

1135

What is the benefit of inner / nested classes ?

1005

What are the common uses of "this" keyword in java ?

1035

Difference between nested and inner classes ?

1150

Explain static nested classes ?

1135

Difference between predicate, supplier and consumer ?

1081

Which keyword specify that a variable is effectively final ?

1007

Which access specifier can be used with class ?

1016

How can we run a java program without making any object?

1062

What will happen if there is a default method conflict as mentioned above and we have specified the same signature method in the base class instead of overriding in the existing class ?

977

Explain about anonymous inner classes ?

1101

What one should take care of, while serializing the object?

919

When do you get classcastexception?

1044

Explain method local inner classes ?

1051

Un-Answered Questions { Java J2EE }

What is local class in java?

1104

What is the difference between java and j2ee?

866

Where are the card layouts used?

1085

Is java a security risk?

1064

What is the largest data type in java?

989

What is local variable and instance variable?

1073

What is the difference between genericservlet and httpservlet

1113

Explain about the interpreter in java?

1071

If my browser does not support cookie, and my server sends a cookie instance what will happen?

1120

What are the extension interfaces that are there in hibernate?

353

What do you mean by web applications?

1227

Can we force garbage collector to run ?

1069

Which java collection class can be used to maintain the entries in the order in which they were last accessed?

1066

Prepared statements are faster. Why?

1065

You are getting a error in your appserver/webserver logs "connection refused", from the operating system perspective how will you troubleshoot this?

1041

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