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?

1125

What are facelets templates?

1035

what is the purpose of using rmisecuritymanager in rmi?

972

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

1239

Why we override equals() method?

1039

What is the advantage of preparedstatement over statement?

1109

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

1051

What is difference between jdk,jre and jvm?

1125

What is the difference between processes and threads?

1054

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

1102

What is the difference between sleep and wait in java?

966

Explain java heap space and garbage collection?

1072

What is meant by binding in rmi?

1011

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

1040

How do weakhashmap works?

1155

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Un-Answered Questions { Core Java }

What is the purpose of a parameter?

1074

What is the platform?

1002

How to sort list of list in java?

1094

How do you control extraneous variables?

915

What does || mean in vectors?

931

What is use of set in java?

1003

State the significance of public, private, protected class?

1107

What is a dynamic array in java?

1178

What are the two environment variables that must be set in order to run any java programs?

967

What is flush () in java?

1008

What is the class in java?

1014

How to display arraylist values in java?

1009

What are 5 boolean operators?

1176

Explain the difference between string, stringbuffer and stringbuilder in java?

1002

Why array is used in java?

968

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