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?

972

How to sort array of 0 and 1 in java?

944

Which collection allows duplicate values in java?

969

Is hashset ordered java?

1081

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

976

What is an iterator java?

1098

What is the use of hashmap in java?

1081

How do you compare objects in java?

945

What is temp in java?

995

How to sort elements in a parallel array in java?

886

Is string a class in java?

977

Are arrays classes in java?

1028

What is arrays fill in java?

1003

What is an empty list in java?

960

How to sort list of list in java?

1089

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Un-Answered Questions { Core Java }

What is the escape character in java?

984

How can you traverse a linked list in java?

1127

What is an iterator interface in java programming?

957

What happens when main () method is declared as private?

1135

What is qualitative variable?

923

Define how can we find the actual size of an object on the heap?

1200

Can static methods be inherited?

1038

Difference between static binding and dynamic binding?

1102

What does i ++ mean in Java?

949

What is the generic class?

961

What is the difference between yield() and sleep()?

1008

What is overriding in java?

1067

How are the elements of a gridbaglayout organized?

1057

Explain java heap space and garbage collection?

1066

What is meant by JVM? Is JVM platform independent or not?

1072

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