Do - While

This should be used in situations when you want to loop while a condition is true.
You can test the condition at the top or at the bottom of the loop.

Condition At The Top

This might not be executed because the condition is at the top.
This loops while the variable has a value less than 5 (four times).

Condition At The Bottom

This is executed at least once because the condition is at the bottom.
This loops while the variable has a value less than 5 (four times).

Nested Do - While

You can nest loops inside one another.
In this example you need to reset the inner variable inside the outside loop.

Exit Do

The Exit Do statement lets you exit the loop early.