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

Core Java Interview Questions

Questions Answers Views Company eMail

Describe the process as to how substring() methodology mechanisms in java.

1067

What technique is carried out to find out if a particular string is empty?

983

What do you understand by the term wrapper classes?

953

define the terminology association.

1064

Is it possible to compare various strings with the help of == operator?

946

Are static members inherited to sub classes?

1104

What is multi level inheritance in java?

975

Can string be considered as a keyword?

1002

what do you understand by the term string with respect to java?

998

Describe the various concepts related to object oriented programming (oop).

994

Why char array is favored over string for the storage of passwords?

1019

List some important characteristics on jre

1036

Differentiate between vector and array list.

1007

Explain abstract class in java?

1011

What are some characteristics of interference class?

966

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Un-Answered Questions { Core Java }

What is java instanceof operator?

998

What is meant by polymorphism?

969

Why put method is idempotent?

852

What is serialization in java?

1022

Is 0 true or false?

963

What is java autoboxing?

907

What is an object class?

978

What is a text string?

1043

Is heap stored in ram?

914

Can a final variable be manipulated in java?

945

What are the limitations of procedural programming approach?

1016

What is ++ a in java?

935

What is an anonymous class in java?

1031

How is a structure different from array ?

1003

How garbage collection is done in java?

1006

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