java program bubble sort in ascending and descending order

1// Bubble sort descending order
2import java.util.Scanner;
3public class BubbleSortDescending 
4{
5   public static void main(String[] args) 
6   {
7      int number, a, b, temp;
8      Scanner sc = new Scanner(System.in);
9      System.out.println("Please enter number of integers: ");
10      number = sc.nextInt();
11      int[] arrInput = new int[number];
12      System.out.println("Enter " + number + " integers: ");
13      for(a = 0; a < number; a++) 
14         arrInput[a] = sc.nextInt();
15      for(a = 0; a < (number - 1); a++) 
16      {
17         for(b = 0; b < number - a - 1; b++) 
18         {
19            // logic to sort in descending order
20            if(arrInput[b] < arrInput[b + 1]) 
21            {
22               temp = arrInput[b];
23               arrInput[b] = arrInput[b + 1];
24               arrInput[b + 1] = temp;
25            }
26         }
27      }
28      sc.close();
29      System.out.println("Sorted integers: ");
30      for(a = 0; a < number; a++) 
31         System.out.println(arrInput[a]);
32   }
33}