Page 170 - ComputerScience_Class_11

S.No. Operators Precedence
9 Bitwise exclusive OR ^
10 Bitwise inclusive OR |
11 Logical AND &&
12 Logical OR ||
13 Ternary ? :
14 Assignment including shorthand =, +=, -=, *=, /=, %=, &=, ^=, |=, <<=, >>=, >>>=
Some Solved Examples:

1. int m=10, n=20, p=12, q=4, e;
e = m - n * (q % p) + 10 * q;
= 10 - 20 * (4 % 12) + 10 * 4 [innermost bracket]
= 10 - 20 * 4 + 10 * 4 [multiplication]
= 10 - 80 + 40 [subtraction]
= -70 + 40 [addition]
= -30
Hence, e=-30 (Answer)
2. y += ++y + y-- + --y; when int y=8
y = y + (++y + y-- + --y) [bracket]
= 8 + (9 + 9 + 7) [prefix and postfix]
= 8 + (25) [addition]
= 33
3. boolean result = ((4<5) && !(2<3) || (7==7));
Output: true

Note: Since the relational operator has higher precedence than the logical operator, the relational
operator will be executed before the logical operator.

The precedence of logical operators is as follows:
Logical NOT (!), Logical AND (&&) and Logical OR (||).
So, if a statement contains all the three logical operators, then Logical NOT operator will be operated first.
Examples:
1. (2<3) = true
!(2<3) = false
2. (4<5) = true
3. (4<5) && !(2<3) = false
4. (7==7) = true
5. ((4<5) && !(2<3) || (7==7)) = true
Hence, the result is true.

7.5 ASSOCIATIVITY OF OPERATORS
Some operators have the same precedence. In that case, the evaluation is done according to their associativity, which
is either from left to right or vice versa.

Suppose, in an expression “a+b-c”, the operators + and - are given without any parenthesis. Since the binary operators
have left-to-right associativity, the addition will be executed before the subtraction.

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