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

Core Java Interview Questions

Questions Answers Views Company eMail

What is the static method?

1093

In java, how many ways you can take input from the console?

1012

What is the purpose of stub and skeleton?

1047

What are the main uses of the super keyword?

978

What is object-oriented paradigm?

1075

Does constructor return any value?

1037

What is the nested interface?

1122

What is the reflection?

1014

Is there any case when finally will not be executed?

967

What are the differences between string and stringbuffer?

1139

Can we overload the main() method?

1058

What will be the initial value of an object reference which is defined as an instance variable?

1161

How to set the permissions to a file in java?

1001

What are the disadvantages of using inner classes?

1202

What is the purpose of the finalize() method?

1267

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Un-Answered Questions { Core Java }

How many threads does a core java have?

1081

Is java hashset ordered?

1127

How many decimal places is a double?

1004

What are unchecked exceptions in java?

1051

What are memory tables?

1106

How use .contains in java?

1190

What is the primitive type byte?

1017

how to write a program for sending mails between client and server

2091

What is singleton class and how can we make a class singleton?

1113

Why 1 is not a prime number?

1041

How many bytes is a unicode character?

1016

What is io stream in java?

1078

What is number data type in java?

1023

What is the difference between break and continue statements?

1051

What is the multi-catch block in java?

1060

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