Looping

Looping 

Looping

It is the process of executing (running) block of statement more than one times until some condition is made. Looping is a process of repeaed the activities unitl the operation is reached. Mainly we can categorized loop into two types:- on the basic of control.

1.       Entry control loop

2.       Exit control loop

1 . Entry control loop is checked at the beginning of loop or before executing block of statement of loop. If the condition is false initially, the loop cannot be executed even one times. (0 times).

Mainly there are two types of entry control loop in c programming.

(1)    For () loop

(2)    While () loop

Example :-

Write a program to display number from 1 to 100 by using for loop.

                Int  main()

{

                Int I;

For ( i= 1; i<=100; i++)

     {

                Printf(“%d/t”,i);

                }             

 Return (0);

}

2 . Exit control loop is checked at the end of the loop or end of the block of statement of loop. If the condition is initially false, the loop will be executed at once, do-while is the example of exit control loop.

Let us take one example:-

                Int main ()

{

                I = 10;

        do

                {

                                Printf(“Cambridge university”);

                   }

     While (i<5);

The Cambridge university is printed at once while.