2个java希尔排序示例

package cn.cqu.coce.xutao;

public class shell3 {
 public static void main(String args[]){
  int a[]={7,43,23,5,3,2,0,6,74,9};
  int n=a.length;
  for(int i=0;i<n;i++)
   System.out.print(a[i]+"\t");
  System.out.println();
     for(int gap=n/2;gap>0;gap/=2){
      for(int i=gap;i<n;i++){
       for(int j=i-gap;j>=0&&a[j]>a[j+gap];j-=gap){
        int temp=a[j+gap];
        a[j+gap]=a[j];
        a[j]=temp;
       }
      }
     }
  for(int i=0;i<n;i++)
   System.out.print(a[i]+"\t");
  System.out.println();
 }
}

class Shell
{
    public void shell_sort(int [] arrays){
        for(int d=5;d>0;d=d-2){
            for(int c=0;c<arrays.length-d;c++){
                for(int i=c;i<arrays.length;i=i+d){
                    for(int j=i;j>0;j=j-d){
                        if(j<d)
                            break;
                        if(arrays[j]<arrays[j-d]){
                            int tmp;
                            tmp=arrays[j];
                            arrays[j]=arrays[j-d];
                            arrays[j-d]=tmp;

                        }
                    }
                }

            }
            snp(arrays);
        }

    }
    public void snp(int[] arrays){
        for(int i=0;i<arrays.length;i++){
            System.out.print(arrays[i]+" ");

        }
        System.out.println();
    }
    public static void main(String[] args)
    {
        Shell s=new Shell();
        int[] a={45,20,80,40,26,58,66,70};
        s.shell_sort(a);

    }
}

---------- java ----------
20 70 40 26 58 66 80
20 58 45 26 70 66 80
26 40 45 58 66 70 80

输出完成 (耗时 0 秒) - 正常终止