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 is the common usage of serialization? What exceptions occur during serialization?

1205

Which way a developer should use for creating thread, i.e. Sub classing thread or implementing runnable.

992

What are the different ways of creating thread?

1064

What will happen if non-synchronized method calls a static synchronized method and what kind of lock it acquires?

1210

What is the use of volatile in java?

1120

Mention the default values of all the elements of an array defined as an instance variable.

1043

What are the steps in the jdbc connection?

1086

Why singleton pattern is better than creating singleton class with static instance?

1056

Write a code to create a trigger to call a stored procedure

1037

What is the difference between preparedstatement and statement in java?

1247

What is the difference between synchronized and synchronized block?

1115

What is the use of join method?

1095

What do you understand by weak reference?

1068

what is the purpose of the runtime class?

1115

When should you use arraylist and when should you use linkedlist?

987

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Un-Answered Questions { Core Java }

what type of questions asked for barclays technologies pune please send urgent

5720

What is numel matlab?

1420

What is wrapper class html?

999

What is double word?

1032

What is unicode in java?

993

What is primitive data type in java?

1046

What is another word for methodology?

1085

How many bytes is a unicode character?

1066

Is 0 a real number?

1105

what is enumset?

1210

What are the core java topics?

1115

What is the exact difference in between Unicast and Multicast object?

2198

How do you compare characters in java?

1052

How can the checkbox class be used to create a radio button?

1087

Why should I use abstract class?

1195

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