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,

1179

Explain the concept of proper inheritance?

Thomson Reuters, Virtusa,

1068

When should a function throw an exception?

Thomson Reuters, Virtusa,

1054

When do you call copy constructor?

Tavant Technologies, Virtusa,

979

Difference between operator overloading and function overloading

Tavant Technologies, Virtusa,

1073

Explain about OOPS concepts and fundamentals.

Syntel, Visa,

1048

State the difference between strings and arrays.

Syntel, Visa,

1249

State two differences between C and Java.

Syntel, Visa,

1345

What do you mean by pointer value and address?

Syntel, Visa,

1053

What is a two-pass assembler?

Syntel, Visa,

1054

What is the difference between a loader and a compiler?

Syntel, Visa,

1043

Explain OOPs concept.

Syntel, Visa,

1093

Explain polymorphism citing an example.

Amazon,

1050

What are exceptions

Futures First,

1103

What is command line argument

TCS,

1197

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Un-Answered Questions { Core Java }

What is __ init __ functions?

1129

How do you insert a line break?

909

How many ways can we create the string object?

1020

What is the difference between Error, defect,fault, failure and mistake?

1205

What is string :: npos?

1092

How strings are created in java?

1045

Why should we use singleton pattern instead of static class?

933

How do you define a set in java?

1024

How do you compare objects in java?

961

What is use of inner class in java?

1154

What is a nested class?

1127

What are different types of references?

979

What will happen to the exception object after exception handling?

996

What is tochararray in java?

942

What is proper subset?

979

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