Precedence and Associativity of Java operators

Precedence is the order to solve the operators. For simplicity, let's see the table

Operator (Higher to Lower Precedence)

Operators	Precedence
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	= += -= *= /= %= &= ^= |= <<= >>= >>>=

Now, If we take an example and try to solve an expression, There can be a case of operators with the same precedence.

ex. 10 * 20 / 4 % 2

When operators of equal precedence appear in the same expression, a rule must govern which is evaluated first. Now we use their Associativity.

There is two kind of Associativity:

• Left to Right
• Right to Left

For Unary Operators:
Except the postfix operators(expr++ expr--), All the unary operators have got Right to Left Associativity.

For Binary Operators:
Except the assignment operators, All binary operators have got left to right Associativity.