直接插入排序

public class InsertionSort {    public static 
     
      > void sort(T[] arr) {        for (int i = 1, len = arr.length; i < len; i++) {            T cur = arr[i];            int j = i - 1;            for (; j >= 0 && cur.compareTo(arr[j]) < 0; j--) {                arr[j + 1] = arr[j];            }            arr[j + 1] = cur;        }    }    private static void printArr(Object[] arr) {        for (Object o : arr) {            System.out.print(o);            System.out.print("\t");        }        System.out.println();    }    public static void main(String args[]) {        Integer[] arr = {3, 5, 1, 7, 2, 9, 8, 0, 4, 6};        printArr(arr);//3   5   1   7   2   9   8   0   4   6        sort(arr);        printArr(arr);//0	1	2	3	4	5	6	7	8	9    }}