CHAPTER 4

1) Arithmetic operators :

    + + (Unary Plus)

    - - (Unary minus)

    + (Addition)

    - (Substraction)

    * (multiplication)

    / (Floating-point division / Integer division)

    % (Modulus)

Dlm C++, ade increament nan decrement operator..

    + + (Pre-increment) e.g + +m

    + + (Post-increment) e.g m+ +

    - - (Pre-decrement) e.g - -n

    - - (Post-decrement) e.g n- -

 

SOALAN :        a = 2 , b = 3

                      m = 2 , n = 3

                       p = 2 , q = 3

                       x = 2 , y = 3            

(+ + a) + (- - b) * 4 > (+ + m) * (- - n) + 4

JAWAPAN :

               

2) Relational operators :

    < (Less than)

    > (Greater than)

    = = (Equal to)

    < = (Less than or equal to)

    > = (Greater than or equal to)

    ! = (Not equal to)

3) Logical operators : (0/False , 1/True)

    & & (AND) ----> ade je 0 mesti 0/false

    | | (OR) ----> ade je 1 mesti 1/true

    ! (NOT) ---->

    !(& &) (NOT AND) ---->

    !(| |) (NOT OR) ---->  | |

 e.g

 

 

Exercise 2 :

Bahasa melayu=

Bahasa inggeris=

Matematik=

Sains=

Total=

Average=

total=bm+bi+math+sains

average=total/4

Formula :

#include<iostream.h>//header

main()//start body

{//open curly bracket

float bm;

float bi;

float math;

float sains;

float total;

float average;

//input 1

cout<<"bahasa melayu=";

cin>>bm;

//input 2

cout<<"bahasa inggeris=";

cin>>bi;

//input 3

cout<<"matematik=";

cin>>math;

//input 4

cout<<"sains=";

cin>>sains;

//formula

total=bm+bi+math+sains;

//output

cout<<"total="<<total;

//formula

average=total/4;

//output

cout<<"average="<<average;

return 0;

}//close curly bracket

//end body