一个BubbleSort

public class BubbleSort {
    public static void main(String[] args) {
        int[] ada = new int[]{2,546,21,12,55,4,2,0};
        for (int i = 1; i < ada.length; i++) {
            for (int j = 0; j < ada.length - 1; j++) {
                if (ada[j] > ada[j+1]) {
                    ada[j] = ada[j] + ada[j+1];
                    ada[j+1] = ada[j] - ada[j+1];
                    ada[j] = ada[j] - ada[j+1];
                }
            }
        }
        for (int i = 0; i < ada.length; i++) {
            System.out.println(ada[i]);
        }
    }
}