冒泡排序

    public static void bubbleSort(int[] data) {  
        int size = data.length;
        for (int i = 0; i < size; i++) {  
            for(int j = 0; j < size - i - 1; j++){
                if(data[j] > data[j + 1]){
                    swap(data, j, j + 1);
                }
            }
        }  
    }  
  
    public static void swap(int[] data, int i,int j){
        if(i == j){
            return;  
        }
        int tmp = data[i];
        data[i] = data[j];
        data[j] = tmp;
    } 

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