Java 冒泡排序代码

public class BubbleSort { public static void bubbleSort(int[] arr) { int n = arr.length; for (int i = 0; i < n - 1; i++) { for (int j = 0; j < n - i - 1; j++) { if (arr[j] > arr[j + 1]) { // 交换arr[j]和arr[j+1] int temp = arr[j]; arr[j] = arr[j + 1]; arr[j + 1] = temp; } } } }

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public static void main(String[] args) {
    int[] arr = {5, 1, 4, 2, 8};
    bubbleSort(arr);
    System.out.println(Arrays.toString(arr));
}

}