Operators

List of Operators

Here is the list of all the operators you can use in expressions:

Operator	Name	Operands	Description
()	Parenthesis	An expression	Affects the evaluation order of expressions.
+	Addition or concatenation	Two numeric arguments for addition or two string arguments for concatenation	Adds two numeric expressions or concatenates two string expressions
-	Subtraction or negation	One or two numeric arguments	Unary negation operator negates the argument. Binary subtraction operator subtracts the second argument from the first one.
*	Multiplication	Two numeric arguments.	Multiplies two numeric expressions.
/	Division	Two numeric arguments.	Divides the first numeric expression by the second one.
%	Modulo	Two integer arguments	Returns the remainder after division of the first expression by the second one.
&&	Logical AND	Two boolean arguments	Returns true if both arguments are true. Otherwise, returns false.
||	Logical OR	Two boolean arguments	Returns true if at least one argument is true. Otherwise, returns false.
!	Logical negation	One boolean arguments	Returns true if the argument is false. Otherwise, returns false.
==	Equality	Two expressions	Checks whether the expressions are equal
!=	Inequality	Two expressions	Checks whether the expressions are not equal
<	Less than	Two numeric expressions	Checks whether the first arguments is less than the second one.
>	Greater than	Two numeric expressions	Checks whether the first arguments is greater than the second one.
<=	Less than or equal to	Two numeric expressions	Checks whether the first arguments is less than or equal to the second one.
>=	Greater than or equal to	Two numeric expressions	Checks whether the first arguments is greater than or equal to the second one.
? :	Conditional operator	Boolean expression and two expressions of any type	If the boolean condition argument (before the question mark) is true, returns the second argument (after the quesstion mark); otherwise, returns the third argument (after colon). If the condition is null, the operator returns null.

Order of Evaluation

Operators are evaluated in the following order:

1. Parenthesis
2. Unary minus, logical negation
3. *, /
4. +, -
5. <, >, <=, >=
6. ==, !=
7. &&
8. ||
9. ? :