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Course Content

Introduction to Ruby

How to use LearnVern

What is RVM?

How to Install RVM & Ruby Practical

Assignmen of installation version

RVM Functions

RVM Functions Practicals

RVM Assignment-1

RVM Assignment-2

RVM Quiz

Variables Introductions

Local & Global Variables

Instance & Class Variables

Constant

Variables Quiz

Boolean

Numbers

Symbols

Arrays

Hashes

Strings

Object Oriented

Class & Objects

Initializer Method

Instance Method

Initializer Instance Method Practical

Assignment of Initialize Method

Assignment of Instance method

Class Method

Class Method Practical

Class & Methods

Assignment of Class Method

Attribute

Assignment of attr_reader

Assignment of attr_assessor

Assignment of att_write

Object Oriented Quiz

Class and Methods Quiz

Control_Structure Intro

If Else Statement

Assignment of If Else Statement

Unless Statement

Case Statement

Assignment of Case Statement

Intro + While Loop

Assignment of While Loop

Until Loop

Assignment of Until Loop

For Loop

Assignment of For Loop

Break Statement

Assignment of Break Statement

Next Statement

Assignment of Next Statement

Redo Statement

Assignment of Redo Statement

Assignment of Control Structure

Ruby Control Structure Quiz

Introduction of Comments

Assignment of Single line Comments

Assignment of Multi line Comments

Comments Quiz

Arithmetic Operators

Arithmetic Operator Example

Assignment of Arithmetic Operators

Assignment Operators

Assignment Operator Example

Assignment of Assignment Operator

Logical Operators

OR Operator

NOT Operator

Comparison Operators

Comparison Operators Example-1

Comparison Operators Example-2

Assignment of Comparision Operators

Assignment 2 of Arithmetic Operators, Comparision Operators

Assignment 3 of Arithmetic Operators, Comparision Operators

Assignment 5 of Arithmetic Operators, Comparision Operators

Bitwise Operators

And Operator Example

OR Operator Example

XOR Operator

Assignment of Bitwise Operator

Ones Complement Operator

Binary Left Shift Operator

Binary Right Shift Operator

Ternary Operator

Ternary Operator Example

Range Operators

Range Operator Example

Assignment of Range Operator

Operators Quiz

Introduction to Array

Create Array

Access Elements from Array

Methods of Array

Add Element in Array

Remove Element from Array

Assignment of Array

Assignment of Create Array

Assignment of Add element

Array Quiz

Introduction of Hashes

Create Hash

Assignment of Create Hash

Access Elements from Hash

Methods of Hash + Key Method

Hash Methods of values

Hash Methods of clear

Hash Method of delete

Hash Methods of empty

Hash Methods of length

Hash Methods of .has key(key) OR .key(key)

Hash Methods of has value(value) OR .value(value)

Hash Method of Index(value)

Hash Method of Size

Hashes Quiz

Introduction of Blocks

Simple Block

Block With Single Arguments

Block With Multiple Arguments

Assignment of Block

Block Variable Scope

Block Local Scope Variables

Block Global Scope Variables

Assignment of Block Variable

Blocks Quiz

Introduction of Exception

Handling Exceptions

Handling Exceptions Example

Assignment of Handling Exceptions

Retry Statement

Retry Statement Example

Ensure Statement

Ensure Statement Example

Exceptions Assignment-2

Exceptions Assignment-3

Ruby Final Quiz

Instance & Class Variables

Ruby Programming Course Ruby Variables

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Discussion

Course Content

Introduction to Ruby

How to use LearnVern

What is RVM?

How to Install RVM & Ruby Practical

Assignmen of installation version

RVM Functions

RVM Functions Practicals

RVM Assignment-1

RVM Assignment-2

Variables Introductions

Local & Global Variables

Instance & Class Variables

Constant

Boolean

Numbers

Symbols

Arrays

Hashes

Strings

Object Oriented

Class & Objects

Initializer Method

Instance Method

Initializer Instance Method Practical

Assignment of Initialize Method

Assignment of Instance method

Class Method

Class Method Practical

Class & Methods

Assignment of Class Method

Attribute

Assignment of attr_reader

Assignment of attr_assessor

Assignment of att_write

Control_Structure Intro

If Else Statement

Assignment of If Else Statement

Unless Statement

Case Statement

Assignment of Case Statement

Intro + While Loop

Assignment of While Loop

Until Loop

Assignment of Until Loop

For Loop

Assignment of For Loop

Break Statement

Assignment of Break Statement

Next Statement

Assignment of Next Statement

Redo Statement

Assignment of Redo Statement

Assignment of Control Structure

Introduction of Comments

Assignment of Single line Comments

Assignment of Multi line Comments

Arithmetic Operators

Arithmetic Operator Example

Assignment of Arithmetic Operators

Assignment Operators

Assignment Operator Example

Assignment of Assignment Operator

Logical Operators

OR Operator

NOT Operator

Comparison Operators

Comparison Operators Example-1

Comparison Operators Example-2

Assignment of Comparision Operators

Assignment 2 of Arithmetic Operators, Comparision Operators

Assignment 3 of Arithmetic Operators, Comparision Operators

Assignment 5 of Arithmetic Operators, Comparision Operators

Bitwise Operators

And Operator Example

OR Operator Example

XOR Operator

Assignment of Bitwise Operator

Ones Complement Operator

Binary Left Shift Operator

Binary Right Shift Operator

Ternary Operator

Ternary Operator Example

Range Operators

Range Operator Example

Assignment of Range Operator

Introduction to Array

Create Array

Access Elements from Array

Methods of Array

Add Element in Array

Remove Element from Array

Assignment of Array

Assignment of Create Array

Assignment of Add element

Introduction of Hashes

Create Hash

Assignment of Create Hash

Access Elements from Hash

Methods of Hash + Key Method

Hash Methods of values

Hash Methods of clear

Hash Method of delete

Hash Methods of empty

Hash Methods of length

Hash Methods of .has key(key) OR .key(key)

Hash Methods of has value(value) OR .value(value)

Hash Method of Index(value)

Hash Method of Size

Introduction of Blocks

Simple Block

Block With Single Arguments

Block With Multiple Arguments

Assignment of Block

Block Variable Scope

Block Local Scope Variables

Block Global Scope Variables

Assignment of Block Variable

Introduction of Exception

Handling Exceptions

Handling Exceptions Example

Assignment of Handling Exceptions

Retry Statement

Retry Statement Example

Ensure Statement

Ensure Statement Example

Exceptions Assignment-2

Exceptions Assignment-3

FAQs

Instance variables are a part of the object's state that is unique to each instance. Class variables are shared between all instances of the same class.

Variables are a way to store data and reuse it in your program. Variables are created using the keyword "var" followed by a name for the variable.

In Ruby, an instance variable has a name that begins with the @ symbol, and its content is limited to whatever the object refers to. Even if they belong to the same class, two independent objects can have different values for their instance variables.

The @ symbol before a variable indicates that we're dealing with an instance variable, while the @@ symbol indicates that we're dealing with a class variable. In instance methods within a class, we use @ before a variable to instruct Ruby to access that attribute (instance variable) of the instance.

An instance variable is a type of variable in the Ruby programming language that begins with the @ symbol. @fruit is a good example. In Object-Oriented Programming (OOP), an instance variable is used to offer objects their own private place to store data.

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