A method that takes three integer numbers and returns the position of the first maximum in the order of the method parameters.

Main.java

import java.util.Scanner;

public class Main {

    public static int getNumberOfMaxParam(int a, int b, int c) {
        int result = 1;
        if (b > a) {
            result = 2;
            if (c > b) {
                result = 3;
            }
        } else if (c > a) {
            result = 3;
        }

        return result;
    }


    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        final int a = scanner.nextInt();
        final int b = scanner.nextInt();
        final int c = scanner.nextInt();

        System.out.println(getNumberOfMaxParam(a, b, c));
    }
}