Java 希尔排序代码

Sure, I can provide you with a Java implementation of the shell sort algorithm. Here is an example:

public static void shellSort(int[] arr) {
    int n = arr.length;

    // Start with a big gap, then reduce the gap
    for (int gap = n / 2; gap > 0; gap /= 2) {
        // Do a gapped insertion sort for this gap size.
        // The first gap elements a[0..gap-1] are already in gapped order
        // Keep adding one more element until the entire array is gap sorted
        for (int i = gap; i < n; i++) {
            // add arr[i] to the elements that have been gap sorted
            // save arr[i] in temp and make a hole at position i
            int temp = arr[i];

            // shift earlier gap-sorted elements up until the correct location for arr[i] is found
            int j;
            for (j = i; j >= gap && arr[j - gap] > temp; j -= gap) {
                arr[j] = arr[j - gap];
            }

            // put temp (the original arr[i]) in its correct location
            arr[j] = temp;
        }
    }
}

Please note that this implementation assumes an array of integers (int[]) as input.