double or float datatype doesn't addup properly in a loop?

Question

In a loop I am adding 0.10 till I reach the desired #, and getting the index. This is my code :

    private static int getIndexOfUnits(float units) {
    int         


        

Answer 1

You shouldn't use float's for this kind of thing (indexing / iterating).

Try calculating I every time:

I = 1.0f + (i*addup);

And you'll not accumulate floating-point errors.