Hello-World

Hello World in Ada

Every programming journey starts with Hello World. Let’s write our first Ada program using the GNAT compiler (GNU Ada).

The Code

Create a file named hello.adb:

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with Ada.Text_IO; …

Hello World in COBOL

Every programming journey starts with Hello World. Let’s write our first COBOL program using modern free-format syntax with GnuCOBOL.

The Code

Create a file named hello.cob:

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Hello World in Groovy

Introduction

Welcome to your first Groovy program! In this tutorial, we’ll create the classic “Hello, World!” example using Groovy, a powerful dynamic language for the Java Virtual …

Hello World in F#

Every programming journey starts with Hello World. Let’s write our first F# program and see how clean and expressive functional programming can be.

The Code

Create a file named hello.fsx:

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Hello World in Clojure

Every programming journey starts with Hello World. Let’s write our first Clojure program and discover the elegance of this modern Lisp.

The Code

Create a file named hello.clj:

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(println …

Hello World in Lua

Lua is designed to be simple, and Hello World demonstrates this beautifully. In Lua, printing to the console is just one line—no imports, no classes, no boilerplate.

The Code

Create a file named …

Hello World in Scala

Every programming journey starts with Hello World. Let’s write our first Scala program and explore the elegance of this JVM language.

The Code

Create a file named HelloWorld.scala:

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Hello World in R

R is a powerful language for statistical computing and graphics. Let’s start with the traditional “Hello, World!” program to verify your R environment is working correctly.

The …

Hello World in C++

Every C++ journey begins with Hello World. While similar to C’s version, the C++ implementation showcases the language’s more expressive syntax through the iostream library and namespaces. …

Hello World in C

Every programming journey starts with Hello World. This example is particularly special in C - it’s the original Hello World, first appearing in the 1978 K&R book “The C Programming …