Shell Sort Implementation using Java

import java.io.*;
import java.lang.Math;
public class shell
{
public static void main(String args[])
{
int []arr=new int[10];
int i,j,t,flag=1;
System.out.println("Array before sorting:");
  for(i=0;i1)) {
  flag=0;
  l=(l+1)/2;
   for(j=0;(j<arr.length-l);j++) {
     if(arr[j+l]<arr[j]) {
     t=arr[j+l];
     arr[j+l]=arr[j];
     arr[j]=t;
     flag=1;
     }
   }
  }
/*-------------------------------------------------------------------------
Display sorted array
-------------------------------------------------------------------------*/
System.out.println("Array after sorting:");
  for(j=0;j<arr.length;j++) {
  System.out.print(arr[j]);
  System.out.print(" ");
  }
System.out.println("");
}
}