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 map java?

919

How to sort array of 0 and 1 in java?

896

Which collection allows duplicate values in java?

921

Is hashset ordered java?

1035

How do you check whether the list is empty or not in java?

921

What is an iterator java?

1008

What is the use of hashmap in java?

1023

How do you compare objects in java?

883

What is temp in java?

942

How to sort elements in a parallel array in java?

841

Is string a class in java?

924

Are arrays classes in java?

966

What is arrays fill in java?

947

What is an empty list in java?

919

How to sort list of list in java?

1031

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Un-Answered Questions { Core Java }

Is integer a class?

1014

What are different data types?

959

What is static synchronization?

1036

What is intern method in java?

1025

What is the use of inner class?

992

Why are variables important in research?

906

What do you meant by active and passive objects?

1017

What is the flag in java?

991

What are the major advantages of internal iteration over external iteration?

986

Where is singleton pattern used?

933

What is cr keyboard?

1140

Can a static member function access member variable of an object?

956

I want to re-reach and use an object once it has been garbage collected. How it's possible?

954

Can a class be declared as protected?

958

How many unicode characters are there?

981

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