Strange double counting

[hannes]

Hey,

I have some problems when i want to a double to another, an example:

0.3+0.1 =0.39999999... .

Code:

double lowest=0.0;
double highest=1.0;
double interval=0.1
int meeteller=0;
for( double count=lowest;count<=highest;count+=interval,meeteller++)
{
	g.drawString(count+"", 10, (int) ( heigth-( meeteller*pixelInterval ) ) );
}

Can someone explain me what the problem is?

Hannes

[DarrylBurke]

What Every Computer Scientist Should Know About Floating-Point Arithmetic

db

[hannes]

Thanks for the link, i've read a part of it and i know what the problem is, but is there a way to solve it??

Hannes