seanpm2001/Learn-Eiffel

Learning Eiffel (programming language)

I know very little about the Eiffel programming language. This document will go over all of my knowledge of the Eiffel programming language.

Comments in Eiffel

Comments in Eiffel are similar to those of VHDL.

-- This is a single line comment
-- Eiffel doesn't support multi-line comments as far as I know

Hello World in Eiffel

This is how you make a basic Hello World program in Eiffel:

class
    eiffelHelloWorld
create
    make
feature
    make
        do
            print ("Hello world")
        end
end

Program structure in Eiffel

A basic Eiffel program is structured like so:

class
    myEiffelClass
create
    make
feature
    make
        do
            print ("Welcome to Eiffel class")
        end
end

Classes in Eiffel

Eiffel supports classes. The following program is a duplicate of the above example:

class
    myEiffelClass
create
    make
feature
    make
        do
            print ("Welcome to Eiffel class")
        end
end

Other knowledge of the Eiffel programming language

1. Eiffel uses the *.e file extension

2. Eiffel is NOT a semicolon and curly bracket language

3. Eiffel isn't the most well known language, and isn't well supported

4. No other knowledge of the Eiffel programming language.