Android number format is wrong somehow, instead of 3.5 I get 3.499999999, why?

Question

I store some data in a database and I read those data with a cursor. All the data are 56.45 , 3.04, 0.03 type, so two numbers after the decimal point. Now I would like to sum th

Answer 1

Other approach, you can define your sum variable as double and then you can set NumberFormat for your sum variable.

Example:

double sum = 21.2015;
NumberFormat formatter = new DecimalFormat("#.##");
formatter.format(sum);