Java排序四：二分插入排序

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public class TestDemo {public static void main(String[] args) {int[] arr = new int[10];Random random = new Random();for (int i = 0; i < arr.length; i++) {arr[i] = random.nextInt(100);}display(arr);sort(arr);display(arr);}public static void sort(int[] arr) {int len = arr.length;int left, right, num;for (int i = 1; i < len; i++) {left = 0;right = i - 1;num = arr[i];while (left <= right) {int middle = (left + right) >> 0x1;if (num < arr[middle]) {right = middle - 1;} else {left = middle + 1;}}for (int j = i - 1; j >= left; j--) {arr[j + 1] = arr[j];}arr[left] = num;}}private static void swap(int[] arr, int i, int j) {if (i == j) {return;}arr[i] = arr[i] ^ arr[j];arr[j] = arr[i] ^ arr[j];arr[i] = arr[i] ^ arr[j];}private static void display(int[] arr) {for (int i = 0, len = arr.length; i < len; i++) {System.out.print(arr[i] + "  ");}System.out.println();}}

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