Hand In Section:

Name .................

Look at the following program


#include <iostream.h>
//school message program
void main()
{
int a;

a=12;

if(a>4)
  {
   cout<<"Old enough for school"<<endl;
   if(a>10)
     {
      cout<<"Old enough for middle school"<<endl;
      if(a>13)
        {
          cout<<"Old enough for High School "<<endl
        }
     }    

  }


}// end of program



1) Label all the following.
a) Comments
b) Variable declaration -say what type of variable
c)  Output statements.
d) assignment statements.

2)With a line connect each opening brace with the corresponding closing brace.

3) There are three if statements. Each will be met once in the running of the program. Put a tick by the ones whose conditional statement will evaluate as 'true'.
A cross by the ones which will be false.

4)  What do you thing the outpout of the program will be.

5) One line is missing a semicolon. Add it please.




#include <iostream.h>

void main()
{
int f1;
int f2;
int f3;
f1=1;
f2=1;

while (f1<1000)
  {
  cout<<f1<<endl;  //line a

  f3=f2+f1;        //line b
  f1=f2;	   //line c
  f2=f3;           //line d

  }
}// end of program


This is an important program!
6) Draw a line to show which statements are in the loop and will be executed if the test in the while stement is true.

7) Which assignment statements set up variables before the loop (label)

8) What line produces output?

9) The first time we meet the while statement is the logical expression true?

10) The first time we meet line a what value is output? 

11) The first time we meet line b what does the value in f3 become?

12) The first time we meet line c what does the value in f1 become?

13) The first time we meet line d what does the value in f2 become?

14) The second time we meet the while statement is the logical expression true?

15) The second time we meet line a what value will be output? (OK its seems boring).

16) At the end of the second time through the loop what will be in F1    F2   f3   ?

17) The third time through the loop what will be output?

18)  The fourth time through the loop what will be output?

19)  How many times do you think it will go through the loop before the condition becomes false?

20)  Cut and paste to find out.  The correct answer is....