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?

1092

What is default size of arraylist in java?

1221

What is an off by one error in java?

997

Which sorting algorithm is best in java?

1022

What is use of map in java?

1056

What is the default size of arraylist in java?

1191

What is heterogeneous in java?

1021

What is array initialization in java?

1175

What is the order of arraylist in java?

1178

What is immutability in java?

1133

What is arrays aslist in java?

993

What is the use of toarray () in java?

1114

What is dynamic array in java?

1075

What is treeset in java?

1038

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

1070

Post New Core Java Questions

Un-Answered Questions { Core Java }

Is linked list a linear or non-linear data structure?

1008

Difference between nested and inner classes ?

1184

What is the benefit of inner classes in java?

1137

What is ternary operator? Give an example.

1138

Can we access instance variables within static methods ?

1150

Explain differences between collection api and stream api?

1231

What is boolean data type in java?

1037

Are arrays static in java?

1100

What is autoboxing and unboxing?

1060

What are variable arguments or varargs?

1063

Explain about main thread in java?

1144

How do you write methodology?

1021

What is the use of arraylist in java?

1153

Tell us something about set interface.

1065

what do you understand by synchronization? : Java thread

1054

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