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 to declare an arraylist in java?

1107

Why string is not thread safe?

1006

What is complexity and its types?

1029

What are heterogeneous objects?

1037

Does java vector allow null?

953

Can a class have 2 constructors?

888

What is time complexity algorithm?

1044

What is java util hashmap?

979

Can constructor be protected in java?

961

What does system out println () do?

1004

Can static methods be inherited?

1040

Can we convert list to set in java?

982

What are sets in java?

944

What is hashmap in java?

1057

Are arrays static in java?

1051

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Un-Answered Questions { Core Java }

How can we create a synchronized collection from given collection?

1081

List out benefits of object oriented programming language?

893

What are the topics in advance java?

966

How do you convert an int to a string in java?

1130

Which is faster set or list in java?

1029

How do I get 64 bit java?

1103

What is object english?

1057

What are the differences between c++ and java?

1131

Is main a keyword in java?

969

Can we define private and protected modifiers for the members in interfaces?

1092

Is space a char?

922

How do you sort in ascending order in java?

871

Can you explain inner class.

1084

What is abstract class? Explain

1038

What is an array in java?

1193

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