Even Odd in Every Language

Welcome to the Even Odd page! Here, you’ll find a description of the project as well as a list of sample programs written in various languages.

Description

An even number is an integer which is “evenly divisible” by two. This means that if the integer is divided by 2, it yields no remainder.

An odd number is an integer which is not evenly divisible by two. This means that if the integer is divided by 2, it yields a remainder of 1.

Requirements

Create a file called “Even Odd” using the naming convention appropriate for your language of choice.

Write a sample program which accepts an integer on the command line and outputs if the integer is Even or Odd.

Testing

The following table contains various test cases that you can use to verify the correctness of your solution:

Description	Input	Output
no input	None	Usage: please input a number
empty input	””	Usage: please input a number
invalid input: not a number	a	Usage: please input a number
sample input: even	2	Even
sample input: odd	5	Odd
sample input: negative even	-14	Even
sample input: negative odd	-27	Odd

Articles

• Even Odd in Algol68
• Even Odd in Bash
• Even Odd in C
• Even Odd in C#
• Even Odd in C++
• Even Odd in Cobol
• Even Odd in Coffeescript
• Even Odd in Dart
• Even Odd in Elixir
• Even Odd in Fortran
• Even Odd in Go
• Even Odd in Groovy
• Even Odd in Haskell
• Even Odd in Java
• Even Odd in Javascript
• Even Odd in Julia
• Even Odd in Kotlin
• Even Odd in Lisp
• Even Odd in Lua
• Even Odd in Mathematica
• Even Odd in Matlab
• Even Odd in Objective C
• Even Odd in P4
• Even Odd in Pascal
• Even Odd in Perl
• Even Odd in Php
• Even Odd in Python
• Even Odd in R
• Even Odd in Rexx
• Even Odd in Ruby
• Even Odd in Rust
• Even Odd in Scala
• Even Odd in Swift

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