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

Core Java Interview Questions

Questions Answers Views Company eMail

Why do we need hashset in java?

1043

What is default size of arraylist in java?

1157

What is an off by one error in java?

957

Which sorting algorithm is best in java?

983

What is use of map in java?

1013

What is the default size of arraylist in java?

1128

What is heterogeneous in java?

962

What is array initialization in java?

1100

What is the order of arraylist in java?

1138

What is immutability in java?

1090

What is arrays aslist in java?

957

What is the use of toarray () in java?

1071

What is dynamic array in java?

1028

What is treeset in java?

1003

What is the use of arrays tostring () in java?

1041

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Un-Answered Questions { Core Java }

Which list is sorted in java?

1034

How many types of classes are there in java?

1055

What is finalize()? Is finalize() similar to a destructor?

965

What is the use of default method in interface in java? Explain

1006

How is treeset implemented in java?

1028

What is a locale?

1152

How do you use compareto?

948

Can we call the constructor of a class more than once for an object?

1096

What is time complexity java?

991

Can we override static methods in java?

1070

What is oops in java?

1020

What is locale in java?

1020

What does those terms actually mean included in the j.d.k i.6?

2122

What is string :: npos?

1089

What is the instance of an object?

1196

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