Operator Priority Comparison Table
Java operator priority
| operator |
priority |
| postfix |
expr ++ expr -- |
| unary |
++ expr -- expr + expr - expr ~ ! |
| multiplicative |
* / % |
| additive |
+ - |
| shift |
<< >> >>> |
| relational |
< > <= >= instanceof |
| equality |
== != |
| bitwise AND |
& |
| bitwise exclusive OR |
^ |
| bitwise inclusive OR |
| |
| logical AND |
&& |
| logical OR |
|| |
| ternary |
? : |
| assignment |
= += -= *= /= %= &= ^= |= <<= >>= >>>= |
C++operator priority
| Precedence |
Operator |
Description |
Associativity |
| one |
::
|
Scope resolution |
Left-to-right |
| two |
++ --
|
Suffix/postfix increment and decrement |
()
|
Function call |
[]
|
Array subscripting |
.
|
Element selection by reference |
−>
|
Element selection through pointer |
| three |
++ --
|
Prefix increment and decrement |
Right-to-left |
+ −
|
Unary plus and minus |
! ~
|
Logical NOT and bitwise NOT |
( type )
|
Type cast |
*
|
Indirection (dereference) |
&
|
Address-of |
sizeof
|
Size-of |
new , new[]
|
Dynamic memory allocation |
delete , delete[]
|
Dynamic memory deallocation |
| four |
.* ->*
|
Pointer to member |
Left-to-right |
| five |
* / %
|
Multiplication, division, and remainder |
| six |
+ −
|
Addition and subtraction |
| seven |
<< >>
|
Bitwise left shift and right shift |
| eight |
< <=
|
For relational operators < and ≤ respectively |
> >=
|
For relational operators > and ≥ respectively |
| nine |
== !=
|
For relational = and ≠ respectively |
| ten |
&
|
Bitwise AND |
| eleven |
^
|
Bitwise XOR (exclusive or) |
| twelve |
|
|
Bitwise OR (inclusive or) |
| thirteen |
&&
|
Logical AND |
| fourteen |
||
|
Logical OR |
| fifteen |
?:
|
Ternary conditional |
Right-to-Left |
| sixteen |
=
|
Direct assignment (provided by default for C++ classes) |
+= −=
|
Assignment by sum and difference |
*= /= %=
|
Assignment by product, quotient, and remainder |
<<= >>=
|
Assignment by bitwise left shift and right shift |
&= ^= |=
|
Assignment by bitwise AND, XOR, and OR |
| seventeen |
throw
|
Throw operator (for exceptions) |
| eighteen |
,
|
Comma |
Left-to-right |
C language operator priority
| Precedence |
Operator |
Description |
Associativity |
| one |
++ --
|
Suffix/postfix increment and decrement |
Left-to-right |
()
|
Function call |
[]
|
Array subscripting |
.
|
Structure and union member access |
−>
|
Structure and union member access through pointer |
( type ){ list }
|
Compound literal (C99)
|
| two |
++ --
|
Prefix increment and decrement |
Right-to-left |
+ −
|
Unary plus and minus |
! ~
|
Logical NOT and bitwise NOT |
( type )
|
Type cast |
*
|
Indirection (dereference) |
&
|
Address-of |
sizeof
|
Size-of |
_Alignof
|
Alignment requirement (C11)
|
| three |
* / %
|
Multiplication, division, and remainder |
Left-to-right |
| four |
+ −
|
Addition and subtraction |
| five |
<< >>
|
Bitwise left shift and right shift |
| six |
< <=
|
For relational operators < and ≤ respectively |
> >=
|
For relational operators > and ≥ respectively |
| seven |
== !=
|
For relational = and ≠ respectively |
| eight |
&
|
Bitwise AND |
| nine |
^
|
Bitwise XOR (exclusive or) |
| ten |
|
|
Bitwise OR (inclusive or) |
| eleven |
&&
|
Logical AND |
| twelve |
||
|
Logical OR |
| thirteen |
?:
|
Ternary conditional |
Right-to-Left |
| fourteen |
=
|
Simple assignment |
+= −=
|
Assignment by sum and difference |
*= /= %=
|
Assignment by product, quotient, and remainder |
<<= >>=
|
Assignment by bitwise left shift and right shift |
&= ^= |=
|
Assignment by bitwise AND, XOR, and OR |
| fifteen |
,
|
Comma |
Left-to-right |
PHP operator priority
| Binding direction |
operator |
Additional information |
| Disassociation |
clone new |
Clone and new |
| Left |
[ |
array() |
| Disassociation |
++ -- |
Increment/decrement operator |
| Disassociation |
~ - (int) (float) (string) (array) (object) (bool) @ |
type |
| Disassociation |
instanceof |
type |
| Dextral union |
! |
Logical operator |
| Left |
* / % |
Arithmetic operator |
| Left |
+ - . |
Arithmetic operators and string operators |
| Left |
<< >> |
Bitwise Operators |
| Disassociation |
< <= > >= <> |
Comparison operator |
| Disassociation |
== != === !== |
Comparison operator |
| Left |
& |
Bitwise operators and references |
| Left |
^ |
Bitwise Operators |
| Left |
| |
Bitwise Operators |
| Left |
&& |
Logical operator |
| Left |
|| |
Logical operator |
| Left |
? : |
Ternary operator |
| right |
= += -= *= /= .= %= &= |= ^= <<= >>=
|
Assignment Operators |
| Left |
and |
Logical operator |
| Left |
xor |
Logical operator |
| Left |
or |
Logical operator |
| Left |
, |
Used in many places |
Python operator priority
This table gives Python operator priority (from low to high)
From the lowest priority (most loosely coupled) to the highest priority (most tightly coupled).
This means that in an expression, Python will first calculate the operators at the lower part of the table, and then calculate the operators listed at the upper part of the table.
| operator |
describe |
lambda |
Lambda expression |
or |
Boolean OR |
and |
Boolean AND |
not x |
Boolean Not |
in，not in |
Member Test |
is，is not |
Identity test |
<，<=，>，>=，!=，== |
compare |
| |
Bitwise or |
^ |
Bitwise XOR |
& |
Bitwise and |
<<，>> |
displacement |
+，- |
addition and subtraction |
*，/，% |
Multiplication, division and remainder |
+x，-x |
Sign |
~x |
Flip Bit |
** |
index |
x.attribute |
Attribute Reference |
x[index] |
subscript |
x[index:index] |
Addressing segment |
f(arguments...) |
function call |
(experession,...) |
Binding or tuple display |
[expression,...] |
List display |
{key:datum,...} |
Dictionary display |
'expression,...' |
String conversion |
