_seperti biase,kami diberi rehat selama 1 jam.
-selepas rehat,kami belajar chapter 4 iaitu operators and expressions.
-kami belajar ARITHMETIC OPERATORS,RELATIONAL OPERATORS,LOGICAL OPERATORS DAN ASSISMENT OPERATORS.
-Pn.Ayuni memberi kami exercise dan kami diberi tempoh selama 45 minit untuk menyiapkannya.
- setiap group hendaklah menyiapkannya dan setiap wakil ahli group prelu membuat jawapan didepan.
CHAPTER 4 OPERATORS AND EXPRESSIONS.
4.1 Operators
- C++ is very rich in built-in operators.
- Operators triggers some computations when applied to operands in an expression.
- The commonly use operators are as follows :-
a) Arithmetic Operators
b) Relational Operators
c) Logical Operators
d) Assignment Operators
- Table 4-1 shows the commonly use operators in C++ programming language.
Arithmetic Operators | Relational Operators | Logical Operators | Assignment Operators |
+ | >
| && | = |
- | <
| || |
|
* | >= | ! |
|
/ | <= |
|
|
% | == |
|
|
INCREMENT AND DECREMENT OPERATOR
- Increment - Pro-increment (++N)
- Post-increment (N++)
- Decrement - Pro- decrement (--N)
- Post-decrement (N--)
- For Example :-
Int n ; Int n ;
n = 5 N=5
cout << n, 5 cout << n, 5
cout << ++N ; 1+5 =6 cout << N++ ;
cout << N ; 6 cout<< n ;
Int M; Int M ;
M= 9 M = 10
Cout << m; 9 cout << m ; 10
Cout << --M ; 8 cout << M-- ; 10-1 =9
Cout << M ; 8 cout << M ; 9
LOGICAL OPERATING
M | N | M&&N | M||N |
0 | 0 | 0 | 0 |
1 | 0 | 0 | 1 |
0 | 1 | 0 | 1 |
1 | 1 | 1 | 1 |
!(M&&N) | !(M||N) | !M | !N |
1 | 1 | 1 | 1 |
1 | 0 | 1 | 0 |
1 | 0 | 0 | 1 |
0 | 0 | 0 | 0 |
! (M&&N) && (M||N) | !(M) || !(N) |
1 | 1 |
0 | 1 |
0 | 1 |
0 | 0 |
For Example :-
++ a + --b * 4 > ++n && p++ + q-- * 4 < x++ + 4
= 3 + 2 * 4 > 3* 2 + 4 && 3 + 2 * 4 < 3 * 2 + 4
= 3 + 8 > 6 + 4 && 3 + 8 < 6 + 4
= 11 > 10 && 11 < 10
= 1 && 0
0
