WEEKLY REFLECTION 4

WEEKLY REFLECTION 4

- Kelas bermula pada pukul 10.00 pagi..

- Sebelum kelas bermula Miss diberi nota pada forum dan kemudian di suruh download. -Setelah kelas bermula Sesi pembelajaran iaitu Chapter 4 Operators And expressions.

 chapter ini mengenai tentang Arithmetic Operators,Relational Operators,Logical Operators and Assignment Operators.

-Kemudian telah memberi latihan untuk membuat ye...

- Setelah siap si sambung chapter 6 Control Structures tentang coding cara membuat coding If... else,Do..while, For...,While...., and Switch...case..

- Pada diajar tentang If..Else and Switch..Case.. .Bahagian ini saya kurang faham sedikit tentang cara membuat ye..

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

 Chapter 6  Control Structures

Selection Structures

a)     Do..while

b)    While…

c)     For..

d)    If…else

e)     Switch…case

Question :-

Age	Generation
0 – 2	Infant
3 – 6	Kids
7 – 12	Chile
13 – 21	Teenagers
22 – 30	Adult
30 up	Senior Adult

For  the coding :-

#include<iostream.h>

main ()

{

     //datatype variable_name;

     int age;

     cout<<"Enter your age :   ";

     cin>>age ;

    

     //if...else

     if (age>=0 || age <=2)

     {

                cout<<"Infornt";}

                else if (age >=3 || age <=6);

                {cout<<"kids";}

                else if (age >=7 || age <=12);

                {cout<<"child";}

                else if (age >=13 || age <=21);

                {cout<<"feenagers";}

                else if (age >=22 || age <=30);

                {cout << || "adult" ;}

                else if (age > 30)

                {cout<<"senior adult" ;}

                else

                {cout<<"Invalid selection";}

               

                return 0;

               

               

                }