What are Precedence and Associativity?
Precedence and Associativity are the rules that are used to determine the operators with the highest priority in evaluating an equation that contains different operations.
x = 10 + 5 * 2;
In this example, x is assigned as 20, not 30 that’s because operator * has higher precedence than +, and hence it first gets multiplied (5*2) and then multiplied value is added to 10.
In the following table, the precedence of an operator decreases from top to down:
|Postfix||>()  . (dot operator)||Left to right|
|Unary||>++ – – ! ~||Right to left|
|Additive||>+ –||Left to right|
|Relational||>> >= < <=||Left to right|
|Equality||>== !=||Left to right|
|Bitwise AND||>&||Left to right|
|Bitwise OR||>|||Left to right|
|Bitwise XOR||>^||Left to right|
|Logical AND||>&&||Left to right|
|Logical OR||>||||Left to right|
|Conditional||?:||Right to left|
|Assignment||>= += -= *= /= %= >>= <<= &= ^= |=||Right to left|