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

Core Java Interview Questions

Questions Answers Views Company eMail

Explain covariant method overriding in java.

1106

Enlist diffrent types of inheritance supported by java?

918

Which one of the following suits the description of a string better: derived or primitive?

952

What is the technique adopted to create an immutable class?

1114

List some features of the abstract class.

1067

What do you understand by the term singleton?

996

Differentiate between == and equals().

1047

What is the difference between inheritance and encapsulation?

1149

What methodology can be utilized to link to a database?

965

What methodology can be employed to locate substrings inside a string?

957

Explain inheritance in java?

986

What do you understand by the term string pool?

1011

Enlist few advantages of inheritance?

1074

How many techniques can be employed to create a string object?

1106

Differentiate between stringbuffer and string?

1024

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Un-Answered Questions { Core Java }

What are the main uses of java?

992

What are advantages of using Java?s layout managers than windowing systems?

2371

Which package is used for pattern matching with regular expressions?

1114

5 Coding best practices you learned in java?

1015

What is the use of flag?

1092

how to convert Java project into Maven ?

1055

Which list is sorted in java?

1032

How to pass arraylist to stored procedure in java?

1173

How do you sort in descending order in java using collections sort?

898

Is finalize() similar to a destructor?

1022

How a string is stored in memory?

1020

Why do we need autoboxing in java?

998

What are disadvantages of java?

1000

What is better - 'bit-shift a value' or 'multiply by 2'?

1191

What exactly is a .class file?

1046

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