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 Garbage Collection in Java

Wipro,

1129

What is the difference between multitasking and multithreading in Java

Sans Pareil IT Services,

1239

What is the difference between Java and C++?

Integreon, TCS, ZS Associates,

1261

What Is Composition?

IBS,

1119

Does A Class Inherit The Constructors Of Its Superclass?

Wipro,

1141

If A Class Is Declared Without Any Access Modifiers, Where May The Class Be Accessed?

Wipro,

1226

how is final different from finally and finalize in java?

DELL,

1109

what is singleton in java?

IBS,

1110

what is the final keyword denotes in java?

IBS,

1161

what is nested class in java?

IBS,

1228

what is aggregation in java?

IBS,

1079

what is inner class in java?

IBS,

1216

what is the major difference between linkedlist and arraylist in java?

IBS,

1301

what is session in java?

Seventhsense Technologies,

1324

what is object-oriented programming in java?

Reliance,

1108

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Un-Answered Questions { Core Java }

What is the difference between the paint() and repaint() methods in java programming?

1241

What is thread pool in java with example?

1066

What is the longest unicode character?

1206

What is the reason behind using constructors and destructors?

1111

Java is Pass by Value or Pass by Reference?

1094

Why string objects are immutable in java?

1086

What is google full form?

1063

What are measurable parameters?

1132

Explain about member inner classes?

1158

Can constructor be protected in java?

1021

What are the main uses of the super keyword?

1020

What is nested top-level class?

1097

How many bytes is a char in java?

1059

What is an object in java and how is it created?

1103

Explain a few methods of overloading best practices in java?

1024

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