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

Core Java Interview Questions

Questions Answers Views Company eMail

Is java map thread safe?

983

Is array dynamic in java?

948

Does java set allow duplicates?

1101

Can we increase array size dynamically in java?

972

How to store image in arraylist in java?

994

How do you delete a list in java?

980

Can we declare an array without size in java?

1034

Does java map allow duplicates?

914

Can java arraylist hold different types?

1092

Is arraylist sorted in java?

1020

How do you remove duplicates in java?

1034

How does compareto work in java?

1062

Is int a class in java?

991

How does arraylist size increase in java?

1136

How do you reverse sort in java?

976

Post New Core Java Questions

Un-Answered Questions { Core Java }

which class is the wait() method defined in? : Java thread

966

What are the principle concepts of oops?

982

What is xslt in java?

991

How do you override a method?

1038

What is map and hashmap in java?

1083

What are the differences between checked exception and unchecked exception?

980

Difference between static binding and dynamic binding?

1122

What is the difference between method and means?

1100

What does this () mean in java?

1000

Difference difference paint() and paintcomponent()?

1012

Is hashmap thread safe?

1013

Write the algorithm to check the number non-leaf nodes in a tree.

1085

Can we compare two strings in java?

1035

What are some examples of variable costs?

973

If system.exit (0); is written at the end of the try block, will the finally block still execute?

1124

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