Hello World is the first program to code and run for learning any new programming language
This tutorial explains about below things
- How to write a Hello World
- How to compile and run the Hello World program
How to write a Julia Hello World program
- Open any text editor such as VSCode
- Create a new file
hello.jlprogram, jl is a Julia file extension.
- add below code to the file
\# Hello World first program println("hello world first program")
The above program contains two parts
comments contain text, that starts with
#. It is written for developers, and ignored by the Julia compiler.
- Print statement
println is a function that prints a string to the console.
Now, You have written a Hello World program.
It’s time to run and compile the program.
How to run and compile the Julia program
We can run the Julia code in two ways
- using the command line
Julia installation comes with a Julia compiler that runs the code and output to the console.
A:\Julia\work> Julia hello.jl hello world first program
- REPL interactive session
Type Julia in the command line, REPL sessions open and run
Here is a command output:
A:\Julia\work>julia _ _ _ _(_)_ | Documentation: https://docs.julialang.org (_) | (_) (_) | _ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help. | | | | | | |/ _` | | | | |_| | | | (_| | | Version 1.8.5 (2023-01-08) _/ |\__'_|_|_|\__'_| | Official https://julialang.org/ release |__/ | julia> julia> include("hello.jl") hello world first program julia>