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,

1052

When do you call copy constructor?

Tavant Technologies, Virtusa,

978

Difference between operator overloading and function overloading

Tavant Technologies, Virtusa,

1073

Explain about OOPS concepts and fundamentals.

Syntel, Visa,

1047

State the difference between strings and arrays.

Syntel, Visa,

1248

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,

1053

What is the difference between a loader and a compiler?

Syntel, Visa,

1043

Explain OOPs concept.

Syntel, Visa,

1092

Explain polymorphism citing an example.

Amazon,

1049

What are exceptions

Futures First,

1102

What is command line argument

TCS,

1195

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Un-Answered Questions { Core Java }

What about method local inner classes or local inner classes in java?

1061

Explain about field hiding in java?

950

What is a website container?

956

Why do we declare a class static?

1157

Can a static method be overridden in java?

1025

What are some alternatives to inheritance?

1107

What is entry in java?

1039

What is data object example?

1027

What are conditionals and its types?

1146

How does compareto method work?

969

Is null a string in java?

1081

What are the concepts of 'OOPS'?

1078

What is sleep method?

1154

What is regex java?

1112

What is anti pattern in cyber security?

1035

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