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rule comparison table

Subject	states	is an instance of	is a kind of	be	is a subtopic of
isa rule	that class A can only be a valid subclass of class B if it makes sense, in English, to say, "an A is a B"	rule			Inheritance
order of operator precedence			rule	Operators at the top take precedence over operators lower in the table. At the same level of the table, operators are evaluated from left to right. operators comments () [] Anything in parentheses, including array indexing, is evaluated first ++ -- ! Unary operators * / % Multiplicative operators + - Additive binary operators > >= < <= Relational comparison operators == != Identity comparison operators && Logical AND \ Logical OR ?: Ternary if-then-else = += *= -= /= Assignment	Operators

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