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

Core Java Interview Questions

Questions Answers Views Company eMail

How can you handle java exceptions?

1042

Can the garbage collection be forced by any means?

1019

String class is defined under which package in java?

1096

What is the byte order of byte buffer?

1031

What is the difference between the direct buffer and non-direct buffer in java?

1049

What is an object class?

1038

Can you override a private or static method in java?

1 1278

What are the differences between checked exception and unchecked exception?

977

What are multiple inheritances?

1126

What occurs when an object is constructed?

1017

What are multiple inheritances? Is it supported by java?

965

Explain the features of interfaces in java?

994

What’s the difference between callable and runnable?

1118

Is ++ operator thread-safe in java?

1202

What is the size of int in 64-bit jvm?

1114

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Un-Answered Questions { Core Java }

What flag up means?

1036

What is a lightweight component?

1036

what is the purpose of using rmisecuritymanager in rmi?

987

What are the characteristics of Final,Finally and Finalize keywords.

1192

Is null a value?

1055

Can we compare two strings in java?

1033

What an i/o filter?

1031

Explain about the select method with an example?

1192

Is singleton set an interval?

987

Why should I use abstract class?

1118

What is broken and continue statement?

1015

What are parsing rules?

1006

How will you calculate the depth of a binary tree if the tree contains 15 nodes?

1101

What is a boolean flag in java?

1047

How does a cookie work in Servlets?

863

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