Ruby programming language tutorial

Overview

• Ruby overview
• Ruby Environment Setup | Installation of Ruby on Mac and Windows Operating System
• Ruby vs Python | Similarities and Dissimilarities

Basics

• Ruby Syntax
• Ruby Comments
• Variables in Ruby
• Ruby Operators
• Ruby Blocks
• How to check the data type of an object in Ruby?

Class and Methods

• Ruby Private Classes
• Ruby Frozen objects
• Ruby Access Control
• Ruby Singleton Methods
• Polymorphism using Inheritance in Ruby
• Encapsulation in Ruby

Control statements

• Conditional statements in Ruby
• Ruby Loops
• Ruby while loop with examples
• Ruby for loop with examples
• Ruby do...while loop with examples
• Ruby until loop with examples
• Ruby nested for loop with examples
• Ruby nested while loop with examples
• Ruby nested do...while loop with examples
• Ruby nested until loop with examples
• Ruby break statement
• Ruby next statement
• redo and retry Statements in Ruby
• Ranges in Ruby

Methods

• Ruby Methods

Arrays

• Ruby Arrays
• Creating Array with Array.[](*args) in Ruby
• Creating Array with Array.new(size, obj) in Ruby
• Creating Array with Array.new(Array_object) in Ruby
• Creating Array with Array.new(size){|index|} in Ruby
• Creating Array Instance with & Operator(new_array -> arr & old_Array) in Ruby
• Creating Array Instance with * Operator(new_array -> arr * int/string) in Ruby
• Creating Array Instance with + Operator(new_array -> arr + old_array) in Ruby
• Creating Array Instance with - Operator(new_array -> arr - old_array) in Ruby
• Array.each Method with Example in Ruby
• Array.reverse Method with Example in Ruby
• Array.reverse! Method with Example in Ruby
• Array.reverse_each Method with Example in Ruby
• Array.map and Array.map! Methods with Example in Ruby
• Array.reject Method with Example in Ruby
• Array.reject! Method with Example in Ruby
• Array.select Method with Example in Ruby
• Array.select! Method with Example in Ruby
• Array.drop_while Method with Example in Ruby
• Array.delete_if Method with Example in Ruby
• Array.keep_if Method with Example in Ruby
• Array.assoc(obj) Method with Example in Ruby
• Array.include?(obj) Method with Example in Ruby
• Array.collect Method with Example in Ruby
• Array.combination() Method with Example in Ruby
• Array.permutation() Method with Example in Ruby
• Array.product() Method with Example in Ruby
• Array.rotate() Method with Example in Ruby
• Array.rotate! Method with Example in Ruby
• Array.index() Method with Example in Ruby
• Array.rindex() Method with Example in Ruby
• Array.each_index Method with Example in Ruby
• Array.insert() Method with Example in Ruby
• Array.fill() Method with Example in Ruby (1)
• Array.fill() Method with Example in Ruby (2)
• Array.fill() Method with Example in Ruby (3)
• Array.flatten Method with Example in Ruby
• Array.replace() Method with Example in Ruby
• Array.cycle() Method with Example in Ruby
• Array.join() Method with Example in Ruby
• Array.sample() Method with Example in Ruby
• Array.rassoc() Method with Example in Ruby
• Array.rassoc(obj) Method with Example in Ruby
• Array.shuffle Method with Example in Ruby
• Array.shuffle! Method with Example in Ruby
• Array.take() Method with Example in Ruby
• Array.take_while Method with Example in Ruby
• Array.repeated_combination() Method with Example in Ruby
• Array.repeated_permutation() Method with Example in Ruby
• Array.shift Method with Example in Ruby
• Array.slice() Method with Example in Ruby
• Array.slice!() Method with Example in Ruby
• Array.sort Method with Example in Ruby
• Array.sort! Method with Example in Ruby
• Array.sort_by Method with Example in Ruby
• Array.sort_by! Method with Example in Ruby
• Array.uniq Method with Example in Ruby
• Array.uniq! Method with Example in Ruby
• Array.transpose Method with Example in Ruby
• Array.unshift() Method with Example in Ruby
• Array.values_at() Method with Example in Ruby
• Array.zip() Method with Example in Ruby
• Array.pack() Method with Example in Ruby
• Accessing elements of Array with Array.at() method in Ruby
• Accessing elements of Array with Array.fetch() method in Ruby
• Accessing Array elements using Array.take() and Array.drop() methods in Ruby
• Accessing first and last element of an Array using Array.first and Array.last methods in Ruby
• Deleting elements from Array using Array.pop and Array.shift methods in Ruby
• Removing elements from Array using Array.delete() and Array.delete_at() in Ruby
• Removing elements from the Array using of Array.compact and Array.uniq methods in Ruby
• Different methods to find the length of an Array in Ruby
• Adding elements into an array instance with << operator in Ruby
• Array element assignment with ary[index] -> object in Ruby
• Array element assignment with ary[start,length] -> object in Ruby
• Finding whether two arrays are identical or not in Ruby
• Comparing Array instances with <=> in Ruby
• Creating Two Dimensional Arrays in Ruby

Ruby Sets

• Ruby Set
• Ruby Set Comparison
• Ruby Set disjoint? Method with Example
• Ruby Set intersect? Method with Example
• Ruby Set methods | delete_if() and keep_if()
• Print the elements of a set in Ruby
• Find the length of a set in Ruby
• Check the presence of an element in the set in Ruby
• Join all the elements of two sets in Ruby
• Find the common elements from two sets in Ruby
• Find the difference between two sets in Ruby
• Merge two sets in Ruby
• Check whether the set is empty or not in Ruby
• Delete and replace an element from the set in Ruby

String

• Ruby Strings
• String creation in Ruby
• How to append a String in Ruby?
• String concatenation in Ruby
• Concatenate strings using plus (+) operator in Ruby?
• concat() method in Ruby
• chomp Method in Ruby
• Regular Expressions in Ruby
• Ruby to_s method

Classes and Objects

• Object oriented programming in Ruby
• Classes in Ruby
• Objects in Ruby
• Ruby constructors
• Ruby | How to initialise base class constructor with the help of derived class object?
• Ruby Inheritance
• Ruby Method Overriding

Ruby Tools

• Ruby Gems | Ruby Tools
• Ruby Debugger | Ruby Tools

Ruby Functions

• Procs in Ruby
• Lambdas in Ruby
• Differences between Lambdas and Procs in Ruby
• Splat Arguments in Ruby

Ruby built-in functions

• Ruby alias vs alias_method
• Ruby at() function
• Ruby clear() function
• Ruby assoc() function
• Ruby push() function
• Ruby pop() function
• Ruby reverse function
• Ruby reverse! function
• Ruby concat() function
• Ruby to_s function

Misc.

• Date and Time Classes in Ruby
• Threads in Ruby
• Multithreading in Ruby
• Modules in Ruby
• Ruby Mixins
• Exception Handling in Ruby
• How to raise exceptions in Ruby?
• Methods of Exception Class in Ruby
• Hashes in Ruby
• CGI programming in Ruby
• Socket programming in Ruby
• Database access in Ruby
• Sending email using Ruby
• How to tell Ruby program to wait for some amount of time?
• Creating a Custom Error logger in Ruby

Ruby programs

Showing latest programs on the top...

• Ruby program to reverse a string | Set 2
• Ruby program to sort an array with command line arguments
• Ruby program to print multiplication table of a number
• Ruby program to count the number of digits in a number
• Ruby program to calculate the sum of all odd numbers up to N
• Ruby program to calculate the sum of all even numbers
• Ruby program to print power of a number
• Ruby program to print Fibonacci series
• Ruby program to check whether an element exists in an array or not
• Ruby program to print an array
• Ruby program to check whether a string contains a substring or not
• Ruby program to generate random numbers
• Ruby program to convert the string into lowercase and uppercase
• Ruby program to check whether the hash contains specified key or not
• Ruby program to check whether a variable is defined or not
• Ruby program to print an array as string
• Ruby program to count the number of words in a string
• Ruby program to reverse a string
• Ruby program to find number of characters in a string (string length)
• Ruby program to find factorial of a given number
• Ruby program to check whether the given number is prime or not
• Ruby program to find the area of the rectangle
• Ruby program to add two integer numbers
• Ruby program to print Hello World!