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

Core Java Interview Questions

Questions Answers Views Company eMail

Where and how can you use a private constructor?

1051

What happens if an exception is not handled in a program?

1156

What is the difference between the size and capacity of a vector?

1106

Why deletion in linkedlist is fast than arraylist?

1156

What is the difference between a constructor and a method?

1336

When arithmeticexception is thrown?

1081

What’s meant by anonymous class?

1156

What are runtime exceptions?

1227

Which number is denoted by leading 0x or 0x in java?

1103

What is the default value of an object reference declared as an instance variable?

1178

If a variable is declared as private, where may the variable be accessed?

1118

Why do we need wrapper classes?

1122

What is the range of the short type?

1073

What is hashmap and map?

1080

When is the arraystoreexception thrown?

1089

Post New Core Java Questions

Un-Answered Questions { Core Java }

Can we override the static method?

1083

Explain serialization and deserialization in java?

1048

Write java program to reverse string without using api?

1122

What are thread groups?

1064

When to use runnable interface vs thread class in java?

1045

What does escaping a character mean?

1102

What is parsing a sentence?

1176

Can constructor return value?

1016

What is the preferred size of a component in java programming?

1051

What are the parts of methodology?

1040

What is bubble sort in java?

1109

What is difference between static and final?

1137

What is application tier?

1190

Variables used in a switch statement can be used with which datatypes?

1044

How are destructors defined in java?

1093

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