用java生成一个冒泡排序

public class BubbleSort {
public static void main(String[] args) {
int[] arr = {3, 6, 1, 8, 2, 9, 4, 7, 5};
bubbleSort(arr);
for (int i : arr) {
System.out.print(i + " ");
}
}

public static void bubbleSort(int[] arr) {
int len = arr.length;
for (int i = 0; i < len - 1; i++) {
for (int j = 0; j < len - i - 1; j++) {
if (arr[j] > arr[j + 1]) {
int temp = arr[j];
arr[j] = arr[j + 1];
arr[j + 1] = temp;
}
}
}
}
}