冒泡排序

public static void bubbleSort(int[] arr){                     

for (int i = 0; i < arr.length-1; i++) {

for (int j = 0; j < arr.length-1-i; j++) {

if(arr[j] > arr[j+1]){

int temp = arr[j];

arr[j] = arr[j+1];

arr[j+1] = temp;

}

}

}

}