Math combinations

public static void main(String[] args) {

    int[] numbers = new int[10];
    Scanner input = new Scanner(System.in);

    System.out.print("Enter 10 numbers: ");
    for (int i = 0; i < 10; i++) {
        numbers[i] = input.nextInt();
    }

    input.close();

    for (int i = 0; i < numbers.length; i++) {

        for (int k = 0; k < numbers.length; k++) {
            if (k != i) {
                System.out.print(numbers[i] + "*" + numbers[k] + " ");
            }
        }
        System.out.println("");
    }
}

Enter 10 numbers: 1
2
3
4
5
6
7
8
9
0
1*2 1*3 1*4 1*5 1*6 1*7 1*8 1*9 1*0
2*1 2*3 2*4 2*5 2*6 2*7 2*8 2*9 2*0
3*1 3*2 3*4 3*5 3*6 3*7 3*8 3*9 3*0
4*1 4*2 4*3 4*5 4*6 4*7 4*8 4*9 4*0
5*1 5*2 5*3 5*4 5*6 5*7 5*8 5*9 5*0
6*1 6*2 6*3 6*4 6*5 6*7 6*8 6*9 6*0
7*1 7*2 7*3 7*4 7*5 7*6 7*8 7*9 7*0
8*1 8*2 8*3 8*4 8*5 8*6 8*7 8*9 8*0
9*1 9*2 9*3 9*4 9*5 9*6 9*7 9*8 9*0
0*1 0*2 0*3 0*4 0*5 0*6 0*7 0*8 0*9