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 can we find the sum of two linked lists using stack in java?

1173

Mention a package that is used for linked list class in java.

997

Explain the importance of finally block in java?

978

Can we catch more than one exception in a single catch block?

1093

Can we define a package statement after the import statement in java?

1085

Why java doesn’t support multiple inheritances?

1075

Does java support multiple inheritances?

1032

Explain method overloading?

1032

What value is a variable of the string type automatically initialized?

1120

Can we create a constructor in abstract class?

998

What are the advantages of exception handling in java?

1075

Explain about the main() method in java?

1127

What is the method in java?

1118

What are the important methods of java exception class?

1158

How can we make a class singleton?

1098

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Un-Answered Questions { Core Java }

what is the volatile modifier for? : Java thread

1011

What is the difference between heap and stack memory?

1212

Is integer immutable in java?

1006

What are new features introduced with java 8 ?

1008

Which are different kinds of source code?

1126

Which is the best approach for creating thread ?

1231

What is ph and buffers?

1013

Differentiate between run time error and syntax error.

1151

What is an immutable object?

1113

How to declare an arraylist in java?

1128

What are some alternatives to inheritance?

1122

How to make a non daemon thread as daemon?

1075

What is autoboxing in java?

1081

Can we call the run() method instead of start()?

1053

Is null or empty java?

996

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