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?

747

Is array an object in java?

719

Do I need java on my computer?

727

What is java command?

770

Why string is called as immutable?

701

Is java an ide?

716

How many types of interfaces are there?

761

Is string serializable in java?

735

What is the purpose of javac exe?

759

What is difference between word and integer?

797

What is java objectoutputstream?

724

What is javac in java?

751

How do you achieve polymorphism in java?

710

What is java argument list?

688

Is array primitive data type in java?

744

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Un-Answered Questions { Core Java }

Where are global variables stored?

691

What is the benefit of singleton pattern?

733

Can we use string in the switch case?

774

what is enumset?

780

What is collection api?

798

What is re-factoring in software?

791

Is java still necessary?

817

What is a map in java?

742

How do you start a new line in java?

719

Is boolean a data type in java?

713

What is default switch case? Give example.

764

Can inner class final?

859

Can a class have a static inner class?

802

what is singleton class in java?

798

What do u mean by variable?

779

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