Ordena 3 números

ordena

import java.util.Scanner;

public class ordena {

	public static void main(String[] args) {
		int[] num = new int[3];
		Scanner key = new Scanner(System.in);
		System.out.print("N1:");
		num[0] = key.nextInt();
		System.out.print("N2:");
		num[1] = key.nextInt();
		System.out.print("N3:");
		num[2] = key.nextInt();
		key.close();
		int aux;
		
		if (num[0] > num[1]){
			aux = num[0];
			num[0] = num[1];
			num[1] = aux;
		}
		if (num[1] > num[2]){
			aux = num[1];
			num[1] = num[2];
			num[2] = aux;
		}
		if (num[0] > num[1]){
			aux = num[0];
			num[0] = num[1];
			num[1] = aux;
		}
		System.out.println(num[0] +", "+ num[1] +", "+ num[2]);
	}
}