Integrating C#.NET with Embedded System.Chapter-3

Loops

       In C# we have different kind of loops:

                             The while loop

  

                            The do loop

  

                             The for loop

                 The foreach loop

The while Loop 

A while loop will check a condition and then continues to execute a block of code as long as the condition evaluates to a boolean value of true.

Example:

      int myInt = 0;

while (myInt < 10)

{

MessageBox.Show("Inside Loop: "+ myInt.ToString());myInt++;

}

MessageBox.Show("Outside Loop: "+ myInt.ToString());

OUTPUT:

           

 The do Loop 

A do loop is similar to the while loop, except that it checks its condition at the end of the loop. This means that the do loop is guaranteed to execute at least one time. On the other hand, a while loop evaluates its boolean expression at the beginning and there is generally no guarantee that the statements inside the loop will be executed, unless you program the code to explicitly do so .

Example:

       

int myInt = 0;

do

{

MessageBox.Show("Inside Loop: " + myInt.ToString());

myInt++;

} while (myInt < 10);

           MessageBox.Show("Outside Loop: " + myInt.ToString());

The for Loop

 A for loop works like a while loop, except that the syntax of the for loop includes initialization and condition modification. for loops are appropriate when you know exactly how many times you want to perform the statements within the loop.

Example:

            

for (int i = 0; i < 10; i++)

{

   MessageBox.Show("Inside Loop: "+ myInt.ToString());myInt++;

}

MessageBox.Show("Outside Loop: "+ myInt.ToString());

OUTPUT:

 

The foreach Loop 

A foreach loop is used to iterate through the items in a list. It operates on arrays or collections.

Example:

 for (int i = 0; i < 10; i++)

{

MessageBox.Show("Inside Loop: "+ myInt.ToString());myInt++;

}

MessageBox.Show("Outside Loop: "+ myInt.ToString())