Question

public class TestSample {
    public static void main(String[] args) { 

        int a = Integer.parseInt(args[0]);
        int b = Integer.parseInt(args[1]);

        double ran = Math.random();



    }
}

I don’t want to use Random r = new Random(); class. Is there any other way to generate random numbers. I am just struck with what logic could be applied to generate random numbers between two numbers.

Answer 1

Consider using this code:

int a = Integer.parseInt(args[0]);
int b = Integer.parseInt(args[1]);
double ran = Math.random();
double random;

if(a < b)
    random = (b-a)*ran + a;
else
    random = (a-b)*ran + b;

This will work for a >= 0 and b >= 0 if you consider using negative number the logic sligtly changes