Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

Explain access specifiers?

Thomson Reuters, Virtusa,

1174

Explain the concept of proper inheritance?

Thomson Reuters, Virtusa,

1066

When should a function throw an exception?

Thomson Reuters, Virtusa,

1037

When do you call copy constructor?

Tavant Technologies, Virtusa,

971

Difference between operator overloading and function overloading

Tavant Technologies, Virtusa,

1062

Explain about OOPS concepts and fundamentals.

Syntel, Visa,

1044

State the difference between strings and arrays.

Syntel, Visa,

1238

State two differences between C and Java.

Syntel, Visa,

1327

What do you mean by pointer value and address?

Syntel, Visa,

1046

What is a two-pass assembler?

Syntel, Visa,

1049

What is the difference between a loader and a compiler?

Syntel, Visa,

1032

Explain OOPs concept.

Syntel, Visa,

1079

Explain polymorphism citing an example.

Amazon,

1040

What are exceptions

Futures First,

1096

What is command line argument

TCS,

1188

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Un-Answered Questions { Core Java }

Difference between arraylist and vector.

1120

What is gui programming?

1028

Can inner class be public in java?

1015

Explain parallel processing in java8?

1242

Why is the main method declared static?

1128

What are different types of constants?

1040

What is the relationship between clipping and repainting under awt?

1148

Why java is platform independent? Explain.

1001

Which is bigger float or double java?

976

How do you read and print a string in java?

956

Can an abstract class be a final class?

979

Can an interface have a class?

1000

Can we use string in switch case in java?

1051

How will you call an Applet using Java Script Function?

1027

Can we overload the constructors?

990

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