How to make a For loop counter of double type?

Question

Programming

Exam.
While preparing, I came across a ticket where it is necessary to create a cycle with a step expressed as double. As everyone knows, a real type, when performing actions with it, produces an inexact result. Accordingly, it is necessary to create an algorithm that would display the correct number of actions without crutches.
What method, besides comparing with the epsilon neighborhood and pre-counting the number of steps, can be used?
Thanks in advance.
Wrong cycle code

for(double i = 0; i <=2; i+=0.1){
System.out.println(i);
}

Answer 1

for(int i = 0; i <=20; i+=1){
    double d = i / 10.0;
    System.out.println(d);
}

Answer 2

double max = 20.0;
double current = 0.0;
while (current < max)
{
current += 0.1;
System.out.println(current);
}