How can I show up to 2 decimal places without rounding off?

Question

I want to take two decimal places only for a float without rounding off. eg. 4.21777 should be 4.21 and not 4.22. How do I do this?

Answer 1

A simple answer:

double x = 4.21777;
double y = Math.floor(x * 100) / 100;