rubytarball.tar.gz

Do you want to be an interpreted language geek? Are you tired of getting entangled in the dense syntaxes? Does it irritate you to compile your code to machine language first? Are you looking for an easy-to-use scripting language? Well, Ruby is the best pick for you then!

Ruby is a smart, easy-to-use, functional, Object-Oriented programming language, which comes as a wondrous mix of Perl's scripting power, Pythonic capabilities and much more! As Matsumoto, creator of Ruby, implies: "I hope to see Ruby help every programmer in the world to be productive, and to enjoy programming, and to be happy. That is the primary purpose of Ruby language."

This introductory course will be providing you with hands-on practice with the support of a bunch of interactive illustrations, exercises and the integral topics of variables, built-in classes, objects, conditionals, blocks and much more!

Cool, right? Ready to dive into one of the most influential and demanding third generation programming language? Let's tune in!

Ruby: An Amateur's Pitch

#### ***Classes create objects***

>*Objects are instances of classes.*

Classes are kind of blueprints for the concrete objects. Every time a concrete
object (such as the String `"one string"`, the String `"another string"`, the
String `"yet another string"`, and so on ...) is created:

We say that the class is ***instantiated***: an object is created from it.

What does that mean?

Classes have a bunch of characteristics, but most importantly, every class
defines a number of methods, which are specific to this type of thing (e.g. a
String).

Now, every time a new object is created ("instantiated") from this class this
new object get ("inherits") all of these methods.

>💡
>
>Objects inherit methods from their classes.


That's right. Objects have their own methods attached to them.

We'll explain more about the methods that belong to objects in the next chapter.
And you'll see how you can define methods to your own classes, so they're then
available on your objects when we start defining our
[first, own class](https://www.educative.io/collection/page/5642554087309312/5635220564869120/5708494854422528).

But for now we can already point out that all concrete Strings that you use in
your code will all have the same methods defined (attached to them) ... because
they're all created (instantiated) from the same class. 

> ### Further Readings:
>
>You can have a look at all the methods that the class `String` defines on
Ruby's [documentation page](http://ruby-doc.org/core-2.2.0/String.html) for this
class.

Let's see how we can use these methods.

# ***Classes create objects***

>*Objects are instances of classes.*

Classes are kind of blueprints for the concrete objects. Every time a concrete
object (such as the String `"one string"`, the String `"another string"`, the
String `"yet another string"`, and so on ...) is created:

We say that the class is ***instantiated***: an object is created from it.

What does that mean?

Classes have a bunch of characteristics, but most importantly, every class
defines a number of methods, which are specific to this type of thing (e.g. a
String).

Now, every time a new object is created ("instantiated") from this class this
new object get ("inherits") all of these methods.

>💡
>
>Objects inherit methods from their classes.


That's right. Objects have their own methods attached to them.

We'll explain more about the methods that belong to objects in the next chapter.
And you'll see how you can define methods to your own classes, so they're then
available on your objects when we start defining our
[first, own class](https://www.educative.io/collection/page/5642554087309312/5635220564869120/5708494854422528).

But for now we can already point out that all concrete Strings that you use in
your code will all have the same methods defined (attached to them) ... because
they're all created (instantiated) from the same class. 

> ### Further Readings:
>
>You can have a look at all the methods that the class `String` defines on
Ruby's [documentation page](http://ruby-doc.org/core-2.2.0/String.html) for this
class.

Let's see how we can use these methods.

# ***Classes create objects***

>*Objects are instances of classes.*

Classes are kind of blueprints for the concrete objects. Every time a concrete
object (such as the String `"one string"`, the String `"another string"`, the
String `"yet another string"`, and so on ...) is created:

We say that the class is ***instantiated***: an object is created from it.

What does that mean?

Classes have a bunch of characteristics, but most importantly, every class
defines a number of methods, which are specific to this type of thing (e.g. a
String).

Now, every time a new object is created ("instantiated") from this class this
new object get ("inherits") all of these methods.

>💡
>
>Objects inherit methods from their classes.


That's right. Objects have their own methods attached to them.

We'll explain more about the methods that belong to objects in the next chapter.
And you'll see how you can define methods to your own classes, so they're then
available on your objects when we start defining our
[first, own class](https://www.educative.io/collection/page/5642554087309312/5635220564869120/5708494854422528).

But for now we can already point out that all concrete Strings that you use in
your code will all have the same methods defined (attached to them) ... because
they're all created (instantiated) from the same class. 

> ### Further Readings:
>
>You can have a look at all the methods that the class `String` defines on
Ruby's [documentation page](http://ruby-doc.org/core-2.2.0/String.html) for this
class.

Let's see how we can use these methods.

This lesson explains how objects are formed via their classes.

Why should you learn Ruby?

Learning to Program

Getting Started with IRB!

Variables

Built-in Classes: Numbers

Built-in Classes: Strings

Built-In Classes: Booleans

Built-In Classes: Symbols

Built-In Classes: Arrays

Built-In Classes: Hashes

Objects

Writing Methods

Writing Classes

Blocks

Nested Arrays

Get Ready for some more Drill!

Conditionals

Operators

Gear up for some Icing on the Cake!

Advanced Topics

Ready for a Long Haul?

Your Collateral Apparatus!

Instances

Classes create objects