Average of textfields depending on how many textfield are “used”

Question

Little explication: I have an app with 5 textfields, i already got the code to make the avaerage of them. Using floates and giving a variable to each textfield.so, the adding of the value of all the textfield /5 (divided per 5)

My problem is that when a textfield is leaved emptty, its not goona be /5, if user fill in only 4 cells it will be/4 and so on.

Question: how to divide the adding of cells depending in how many cells have content?

I was tryng with textfield.text.length > 0 in an if. But i dont get it

Thanks, hope i was clear.

Answer 1

You could check each textfield and see if the text is NULL or blank (@"")

Use an int to keep track of the number of textfields that have a value.

For example:

int counter = 0;
float total = 0.0;

if([textfield1.text length] > 0)
{
    counter++;
    float thisValue = [textfield1.text floatValue];
    total = total + thisValue;
}

repeat this for all 5 textfields and then divide your total by the counter variable. You could include the if statement in a loop if you are going to vary the number of text fields or to reduce the amount of coding you do.

EDIT I have changed my answer based on the good suggestions of other to use text.length

Answer 2

try to count the number of used textfields by increasing a number every time you read out a textfield that has valid text in it and divide the result by that number. (logically the "number" should be initialized as 0)