Basic Programing Construct (iii): Loops
Loops are yet another programming construct found in all forms of programming. In Arduino, we inherited For, While & do...While loops.
They allow our program to repeat a similar task repetitively
| Loop Types | Description |
|---|---|
| For Loops | A for loop executes statements a predetermined number of times. The control expression for the loop is initialized, tested and manipulated entirely within the for loop parentheses. |
| While Loops | while loops will loop continuously, and infinitely, until the expression inside the parenthesis, () becomes false. Something must change the tested variable, or the while loop will never exit known as a run-away loop. |
| do...while Loops | The do…while loop is similar to the while loop. In the while loop, the loop-continuation condition is tested at the beginning of the loop before performed the body of the loop. |
While loop construct looks almost identical to a if construct, it evaluate the condition before executing the line of codes found within the block.
while (condition) {
Statements;
}
A For loop executes statements a predetermined number of times. The control expression for the loop is initialized, tested and altered within the for loop construct (cool). It is easy to debug the looping behavior of the structure as it is independent of the activity inside the loop.
for (initialize; condition; manipulate) {
Statements;
}
Visually, a For loop could be illustrated as such.
Array type variable :
An array is a special type of variable where a consecutive group of memory locations of the same type are bundled together. To refer to a particular location or element in the array, we specify the name of the array and the position number of the particular element in the array.
In C (unlike some other programming language), you can only have a similar variable type in an array collection. The first element has an index of 0 (zero) and is sometimes called the zero index array.
type ArrayName[ArraySize];
ArrayName[index] = X;
Why did we suddenly bring up Array?
