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 a hashmap used for?

1250

What is the new line character?

1175

Where is the find and replace?

1007

What is string pooling concept?

1081

What is parseint?

1021

Does substring create a new object?

1001

What is charat ()?

933

What is the r character?

1020

How do you declare a variable?

1099

What does int argc char * argv [] mean?

999

How do you change an int to a string?

1013

How do you escape a string?

993

What is difference between filereader and bufferedreader?

963

What does indexof mean?

1029

What is the use of bufferedreader?

996

Post New Core Java Questions

Un-Answered Questions { Core Java }

What is callable java?

983

What is difference in between java class and bean?

1095

Is it possible to override the main method?

981

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

1037

Why spring singleton is not thread safe?

1002

What is hashmap and map?

1030

Can we declare main () method as non static?

978

What are benefits of java?

1050

What's the base class of all exception classes?

1064

What is the purpose of the runtime class in java programming?

1062

How many bits is a boolean?

1090

How many threads does a core java have?

1075

What is collection api?

1060

Why Set interface contains unique elements, what internally implemented for this so that it contains unique elements?

8114

What is the use of static class?

1193

For More Un-Answered { Core Java } Questions Click Here