Introduction to Java

Java was originally named:

• Coffee

• Oak

• New C++

• Duke

From where did Java get its name?

• Coffee

• Book

• Initials of the developers of Java

• TV programme

When was Java released?

• 1975

• 1985

• 1995

• 1990

Who invented Java?

• Bill Gates

• Steve Jobs

• Sergey Brin

• James Gosling

What is the slogan of Java?

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Inheritance is used when the relationship between two classes is a(n) _______ relationship.

• "HAS-A"

• "PART-OF-A"

• "IS-A"

• inverse

The following Syntax is used for?

class Subclass-name extends Superclass-name

{

//methods and fields

}

• Inheritance

• Polymorphism

• Encapsulation

• Abstraction

A class that is inherited is called a ______ .

• subclass

• superclass

• subset class

• relative class

What does polymorphism mean?

• changing shapes

• having many forms

• easy

• being unchangeable

Above picture shows which basic concept of OOP.

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