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

Core Java Interview Questions

Questions Answers Views Company eMail

Is empty list java?

917

How do you add an arraylist to an array in java?

975

How do you initialize an arraylist in java?

1040

How do you remove all elements from an arraylist in java?

1022

How do you add an element to an arraylist in java?

942

How do you sort in ascending order in java?

871

How does arraylist work in java?

1112

How define set in java?

1071

Does java initialize arrays to zero?

1030

Does java linked list allow duplicates?

969

Can array grow dynamically in java?

979

How do you declare a destructor in java?

995

Can we override tostring method in java?

970

Is node a data type in java?

997

How hashmap increases its size in java?

986

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Un-Answered Questions { Core Java }

Is vector ordered in java?

994

Explain the concept of hashtables?

1129

When is the finalize() called? What is the purpose of finalization?

1070

What is flush () in java?

1006

What is exception hierarchy in java?

1006

Where and how can you use a private constructor?

986

What is the purpose of final keyword and when to use it?

997

What is a literal coding?

1020

What are the topics in core java?

1062

What are wrapped classes in java programming?

1054

do I need to use synchronized on setvalue(int)? : Java thread

1006

What is thread life cycle in java?

1060

What is the use of StringTokenizer class?

1061

How do you implement tree mirroring in java?

1073

What are streams?

1113

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