Variables in Alice3
After deciding on a type, the programmer must select a good name for the variable.
A variable name must start with a letter of the alphabet or an underscore.
After the first letter, there can be additional letters, digits and underscores.
There cannot be any spaces in a variable name.
Words that have a special meaning such as Do or Boolean should not be used to name variables.
The name of the variable should indicate its purpose. Variable names like a, b and c are not
very good names for variables unless you are using them for the three sides of a triangle.
If two words are joined together (you can’t have any spaces), a capital letter for the second
word or an underscore can improve the clarity. Example: