Java实现直接插入排序与折半插入排序的示例详解

public class InsertSort {
    public static void insertSort(int[] array) {
        for (int i = 1; i < array.length; i++) {
            int tmp = array[i];
            int j = i-1;
            for (; j >= 0; j--) {
                if (array[j] > tmp) {
                    array[j+1] = array[j];
                } else {
                    break;
                }
            }
            array[j+1] = tmp;
        }
    }

    public static void main(String[] args) {
        int[] arr = {3,2,5,7,1,6,8,9,4};
        System.out.println(Arrays.toString(arr));
        insertSort(arr);
        System.out.println(Arrays.toString(arr));
    }
}

public class InsertSort {
    public static void bsInsertSort(int[] array) {
        for (int i = 1; i < array.length; i++) {
            int tmp = array[i];
            int left = 0;
            int right = i;
            while (left < right) {
                int aver = (left + right) / 2;
                if (tmp >= array[aver]) {
                    left = aver + 1;
                } else {
                    right = aver;
                }
            }
            for (int j = i; j > left; j--) {
                array[j] = array[j-1];
            }
            array[left] = tmp;
        }  
    }

    public static void main(String[] args) {
        int[] arr = {3,2,5,7,1,6,8,9,4};
        System.out.println(Arrays.toString(arr));
        bsInsertSort(arr);
        System.out.println(Arrays.toString(arr));
    }
}