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 api data?

990

Is array an object in java?

954

Do I need java on my computer?

977

What is java command?

1076

Why string is called as immutable?

943

Is java an ide?

967

How many types of interfaces are there?

1060

Is string serializable in java?

1014

What is the purpose of javac exe?

1088

What is difference between word and integer?

1075

What is java objectoutputstream?

979

What is javac in java?

1000

How do you achieve polymorphism in java?

994

What is java argument list?

932

Is array primitive data type in java?

995

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Un-Answered Questions { Core Java }

What languages are pass by reference?

1047

What is java console application?

1002

Can private class be inherited in java?

1027

Does google use java?

948

Can an interface extend a class?

981

What is import java util arraylist?

1179

How to solve the problem of generating the unique hash keys with hash function?

1910

How many characters is 16 bytes?

994

What is the difference between public, private, protected, and friend access?

1041

Why is the main method static?

1151

What is the difference between static (class) method and instance method?

1080

What are predefined functions?

1131

Is an integer an object?

958

What is a function in java?

1024

What are serialization and deserialization?

1253

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