for loop

for loop :
 The for  is an entry control looping statements.first initialization will takes places,After initialization it check the condition,After check the condition,if the condition is non-zero it will enter into the body execute the statements and gofor updation  statements it's once again check the condition if it is non-zero.same process is repeated.
                             The for loop is the more flexible compare to the all other loops.the for rotates in anti-clockwise direction .In for loop every thing is optional.In for loop we can perform any no.of initializations,condition checking is separated by the comma operator.

Syntax :
for(initialize counter;test condition;re-evaluation parameter)
{
       statement 1:
       statement 2:
       statement n;
}

points to remember : 

1 ) Which of the statement will checking  the condition that variable value has to change every time of repetition. 

2 ) The variable will checking the condition that finally as to reach zero .

Example :

With body:
#include<stdio.h>

#include<conio.h>

main()

{

int i;

for(i=1;i<=10 ;i++)

{

printf("%d",i);

}

}

OUTPUT:

12345678910

with out body :
#include<stdio.h>
main()
{
int a,b;
for(a=b=1;a;printf("%d %d",a,b))
a=b++<=3;
printf("\n %d %d ",a+10,b+10);
}
OUTPUT :
1    2
1    3
1    4
1    5
10 15

with semi column :
#include<stdio.h>
main()
{
int a;
for(a=1;a<10;a++);
printf("\t%d",a);
}
OUTPUT :10