Example
var total_price = ticket_price * number_of_tickets
The characters =
and *
are operators. ticket_price
and number_of_tickets
are operands of the multiplication, and total_price
is the left operand of the assignment.
Multiplying has the highest precedence; otherwise the assignment would not make sense. You can view all operators and their precedence in the following table.
List of all available operators
Binary Operator

Precedence 
Description 

=

1  Assign a value to a variable 
+=

1  A shortcut for x = x + ... 
= 
1  A shortcut for x = x  ... 
*= 
1  A shortcut for x = x * ... 
/=

1  A shortcut for x = x / ... 
::= 
1  A shortcut for x = x :: ... 


2  Boolean operator that evaluates to true if and only if either of its operands are true 
&&

3  Boolean operator that evaluates to true if and only if both of its operands are true 
==

4  Boolean operator that evaluates to true if and only if both of its operands are equal 
!= 
4  Boolean operator that evaluates to false if and only if both of its operands are equal 
>

5  Boolean operator that evaluates to true if and only if the number value of the left operand is greater than the number value of the right operand 
<

5  Boolean operator that evaluates to true if and only if the number value of the left operand is less than the number value of the right operand 
>=

5  Boolean operator that evaluates to true if and only if the number value of the left operand is greater than or equal to the number value of the right operand 
<=

5  Boolean operator that evaluates to true if and only if the number value of the left operand is less than or equal to the number value of the right operand 
+ 
6  Arithmetic addition of the number values of the two operands 
 
6  Arithmetic subtraction of the number values of the two operands 
:: 
6  Concatenation of the string values of the two operands 
* 
7  Arithmetic multiplication of the number values of the two operands 
/ 
7  Arithmetic division of the number values of the two operands 
% 
7  Modulo operation with the left operand as the dividend and the right operand as the divider 
^ 
7  Exponential operation with the left operand as the base and the right operand as the exponent 
Unary Operator  Precedence  
!

8  Negation operator that evaluates to true if the operand is false 
x 
8  Decrement x by 1 and return (x  1) 
x 
8  Decrement x by 1 and return original value of x 
++x 
8  Increment x by 1 and return (x + 1) 
x++ 
8  Increment x by 1 and return original value of x 
@x

8  Mark variable x as a String constant. This will prevent all number operations on this expression. 