Values belong to a type
The most important built-in types are:
String
"This is a string", or "0.234", or " " (whitespace)
"This is a string"
"0.234"
" "
Integer
2, or 3, or -2, or 0, not 0.0!
2
3
-2
0
0.0
Floating-point
2.234, or -12.3234, or 2343.1, or 0.0
2.234
-12.3234
2343.1
