Bubble Sort pada array satu dimensi

/**
 * Program  : Algoritma pengurutan Bubble Sort
 * Date     : 4 Juni 2022
 * Author   : Riyanto
 * Website  : https://www.melonkoding.com
 */

import java.util.Arrays;

class Main {
    
    private static int[] numbers = {4, 1, 9, 3, 7, 2, 8, 5, 6};
    
    public static void main(String[] args) {
        System.out.println("Unsorted  : "+ Arrays.toString(numbers));
        System.out.println("Sorted Asc: "+ Arrays.toString(bubble(numbers)));
    }
    
    private static int[] bubble(int[] numbers) {
        for(int i=0; i<numbers.length - 1; i++) {
            for(int j=0; j<numbers.length - (i+1); j++) {
                if(numbers[j] > numbers[j+1]) {
                    int temp     = numbers[j];
                    numbers[j]   = numbers[j+1];
                    numbers[j+1] = temp;
                }
            }
        }
        return numbers;
    }
}