EXERCISES (DO IN YOUR BLOG)

22  FEBRUARY 2011 

1. Write correct C++ syntax & for each statement below :

a) Initializing variable Pi with the 3.14 (Constant)

     Variable name =

      Float Pi = “3.14” ;

b) Declare a variable names Parameter with double data type  ( declare variable )

     Double data Parameter ;

c) Give instruction that allowed user to input data ( input )

     int  data ;

     cout <<  “Enter the data “ ;

     cin >> data ;

d) Input number of computer using variable ( input assign to variable value )

    int number ;

    cin >> data ;

 2) Solve the question below. Show the working :-

a)     5 * 2 % 3 + 25 / 5

= ( 10 % 3 ) + ( 25 /5 )

= 1 + 5

= 6

     b) a = 5, b= 6

         !((a < 3 ) && ( a= = 3 ) || ( b > 9 )

         = !((5 < 3) && ( 5 == 3 ) ||  ( 6 > 9 )

         = !((  0 && 0 ) || ( 0 ))

         = !(( 0 || 0 ))

         = ! ( 0 )

         =   1

3)  Identify syntax errors in the following program.

  

     #include<iostream.h>

      main ()

      {

      float allowance = RM 300.00 salary, Tsalary ;

         

      cout << “input salary =  “ ;

      cin >> salary ;

      T salary = salary + Allowance ;

      Cout << “ Total salary  is  =   “ << salary ;

     

      Return 0 ;

      }

4. Write a program that will calculate the monthly salary for an employee that where

     Saturday and Sunday are considered as non-working days.

5. Write a program that calculate the average of 5 number that can be input by user.

    

   

6. Write a program that will calculate the area of rectangular , triangle and circle.

Triangle

Circle

Rectangular