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?

977

How to sort array of 0 and 1 in java?

951

Which collection allows duplicate values in java?

972

Is hashset ordered java?

1091

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

980

What is an iterator java?

1111

What is the use of hashmap in java?

1090

How do you compare objects in java?

957

What is temp in java?

1002

How to sort elements in a parallel array in java?

894

Is string a class in java?

985

Are arrays classes in java?

1038

What is arrays fill in java?

1012

What is an empty list in java?

978

How to sort list of list in java?

1094

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Un-Answered Questions { Core Java }

Can we serialize static variables in java?

1097

What is the difference between a vector & an array list?

1166

Can we use switch statement with strings?

1045

What is difference between Heap and Stack Memory?

1052

Can interface be private in java?

1026

What is the difference between sleep and wait in java?

966

What is intern method in java?

1081

Is a copy constructor?

1061

What is an argument in java?

941

Can we write method inside a method in java?

994

What is parameter example?

1024

What are the differences between forwarding () method and sendredirect() methods?

1111

Explain what do you mean by functional overloading in java?

1020

Describe what happens when an object is created in java ?

1010

How you can force the garbage collection?

985

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