数组从小到大排序

//数组从小到大排序
int[] arr = {1,3,2,4,5};
Arrnum(arr);

 

private static void Arrnum(int[] arr) {
    int len = arr.length;
    for (int i=0;i < len;i++){
        for (int n=0;n <len-1-i;n++)

            if (arr[n] < arr[n+1]){
            }
            else {
                int temp = arr[n];
                arr[n] = arr[n+1];
                arr[n+1] = temp;
            }
        }
    System.out.println("排序后为："+ Arrays.toString(arr));
}