First Program

Matchbox source files use the .mb extension. Create a file named main.mb and add the following code:

var x = 10
var y = 20
var result = x + y

print(result)

This program stores two integers, adds them, and passes the result to print.

Compile and run the program:

matchbox main.mb

The program writes the following value to standard output:

30

You can now change either value and run the command again to see the updated result. Continue to Language Basics for the next step.