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,

1084

What is the difference between multitasking and multithreading in Java

Sans Pareil IT Services,

1185

What is the difference between Java and C++?

Integreon, TCS, ZS Associates,

1195

What Is Composition?

IBS,

1055

Does A Class Inherit The Constructors Of Its Superclass?

Wipro,

1076

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

Wipro,

1182

how is final different from finally and finalize in java?

DELL,

1056

what is singleton in java?

IBS,

1050

what is the final keyword denotes in java?

IBS,

1090

what is nested class in java?

IBS,

1174

what is aggregation in java?

IBS,

1015

what is inner class in java?

IBS,

1134

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

IBS,

1218

what is session in java?

Seventhsense Technologies,

1248

what is object-oriented programming in java?

Reliance,

1049

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Un-Answered Questions { Core Java }

What are memory tables?

1096

What is the importance of hashcode() and equals() methods?

1054

What is boolean query?

983

What does sprintf mean?

947

What is computer compiler?

1000

If goto and const is reserve words than why it is not work in java?

1974

What are the features of junit?

1044

Are arrays static in java?

1055

Is linked list a linear or non-linear data structure?

971

Is math class static in java?

1121

What do you mean by platform independence? What is an interface?

1035

What is the difference between an interface and an abstract class?

1006

How many types of flags are there?

1017

Explain an algorithm to find depth of a binary tree.

1044

What is the full form of jpeg?

963

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