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

Core Java Interview Questions

Questions Answers Views Company eMail

What are decalarations?

1067

What are facelets templates?

989

what is the purpose of using rmisecuritymanager in rmi?

923

What is the tradeoff between using an unordered array versus an ordered array?

1173

Why we override equals() method?

990

What is the advantage of preparedstatement over statement?

1056

What is the default size of load factor in hashing based collection?

998

What is difference between jdk,jre and jvm?

1058

What is the difference between processes and threads?

997

What is the main difference between java platform and other platforms?

1007

What is the difference between sleep and wait in java?

912

Explain java heap space and garbage collection?

1012

What is meant by binding in rmi?

964

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

991

How do weakhashmap works?

1101

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Un-Answered Questions { Core Java }

What do the thread?class methods run() and start() do?

993

What are the differences between graph and tree?

1072

What is files manifesting?

2151

What is a boolean used for?

1070

Can we force the garbage collection to run?

902

What is the major advantage of external iteration over internal iteration?

1044

What is integers and example?

930

What are the two basic ways in which classes that can be run as threads may be defined?

1022

Difference between notify() method and notifyall() method in java?

921

When will you define a method as static in Java?

1004

What are the six ways to use this keyword?

1021

What is a function in programming?

993

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

985

What is heterogeneous in java?

909

What are namespaces in java?

987

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