Simple Ruby Program - Hello World

Create and Run the Hello World Program in Ruby

Ruby programs can be written in a very easy manner, follow the below two steps to create and run the program.

1. Open a text editor, write the following "Hello World" program and save the file with .rb extension i.e. HelloWorld.rb

class HelloWorld
	def greetings
        puts("Hello World")
    end    
end

obj = HelloWorld.new
obj.greetings

2. Run the ruby file (i.e. ruby program) using the command ruby HelloWorld.rb.