Homework Java Syntax Problem 4 The smallest f three numbers

import java.util.Scanner;


public class Problem_4_TheSmallestOfThreeNumbers {

    public static void main(String[] args) {
        Scanner scan= new Scanner(System.in);
        System.out.print("a= ");
        double a= scan.nextDouble();
        System.out.print("b= ");
        double b= scan.nextDouble();
        System.out.print("c= ");
        double c= scan.nextDouble();
        double smallestNumber= Math.min(a, b);
        smallestNumber= Math.min(c, smallestNumber);
        System.out.printf("Smallest number of %1$f, %2$f, %3$f is %4$f", a, b, c, smallestNumber);

    }

}