variable xxx,yyy,zzzConstants may be declared at the top of the file by indicating the keyword const, name followed by an equals sign followed by a value:
const NSLOTS = 6Expressions may be built up from variables and arithmetic operators: * / + - ( ). Logicalexpressions may use the conventional logical operators
is less than is greater than is equal to is not equal to is less than or equal to is greater than or equal toLogical expressions may be combined using parentheses and the operators and, or ortheir c equivalents:
(xxx is greater than 7) and (yyy is 8) (xxx > 7) && (yyy == 8)