Rounding up a number to nearest multiple of 5

Question

Does anyone know how to round up a number to its nearest multiple of 5? I found an algorithm to round it to the nearest multiple of 10 but I can\'t find this one.

T

Answer 1

Another Method or logic to rounding up a number to nearest multiple of 5

double num = 18.0;
    if (num % 5 == 0)
        System.out.println("No need to roundoff");
    else if (num % 5 < 2.5)
        num = num - num % 5;
    else
        num = num + (5 - num % 5);
    System.out.println("Rounding up to nearest 5------" + num);

output :

Rounding up to nearest 5------20.0