ShellSort 希尔排序算法

public class ShellSort {

	
	public static void shellSort(Comparable[] data){
		int j;
		for(int gap = data.length / 2; gap > 0; gap /= 2){
			for(int i = gap; i < data.length; i ++){
				
				Comparable tmp = data[i];
				for(j = i; j >= gap && tmp.compareTo(data[j - gap]) < 0; j -= gap)
					data[j] = data[j - gap];
				data[j] = tmp;
			}
		}
	}
	public static void main(String[] args){
		Comparable[] a = {13,25,1,2,3,4,6,9,25,9787,25,64,32,11,18,72,23,7};
		shellSort(a);
		for(int i = 0; i < a.length; i ++)
			System.out.print(a[i]+ ",");
	}
}