for loop in c++ examples , natural no display

 // for loop some some examples( coding and output)

case 4 :

#include<iostream.h>
#include<conio.h>

void main()
{
   for(int i=8;i>=0;i--)
      cout<<i<<" ";    
}

// In the above code loop executes 9 times ie. i=8 to i=0
hence the output :  
                            8 7 6 5 4 3 2 1 0
after every number one space is printed as mentioned in the code.
 
case 5:
 
 
#include<iostream.h>
#include<conio.h>

void main()
{
  for (int i = 2; i >= 0; i--)
    {
        cout<<"hello";
        cout<<"abc";
    } 
}
 
// In the above code loop will execute 3 times and both the words "hello" and "abc" will be displayed as they are within a single braces, but  with out any space or new line as no space character and no new line is there .
Output:
                  helloabchelloabchelloabc 

 case 6:

#include<iostream.h>
#include<conio.h>

for (int i = 2; i >= 0; i--)
    {
        cout<<"hello";
        cout<<"abc";
        cout<<endl;
    }
 // In the above code loop will execute 3 times and both the words "hello" and "abc" will be displayed.After helloabc there is a new line so output will be:
helloabc
helloabc
helloabc