Removes All The Duplicte Elements From The Array

/*Removes All The Duplicte Elements From The Array*/
import java.io.*;
class Duplicate
{
     int num[],y;
     void readlist()throws IOException
     {
         BufferedReader x=new BufferedReader(new InputStreamReader(System.in));
         num=new int[10];
         for(int i=0;i<10;i++)
         {
             System.out.println("Enter a number");
             num[i]=Integer.parseInt(x.readLine());
         }
      }
      void packlist()
      {
          int s=num[0],l=num[0],c=0;
          int dup[]=new int [10],k=0;
          y=0;
          for(int i=0;i<10;i++)
          {
              if(s>num[i])
              s=num[i];
              if(l<num[i])
              l=num[i];
          }
          for(int i=s;i<=l;i++)
          {
              c=0;
              for(int j=0;j<10;j++)
              {
                  if(i==num[j]&&c==0)
                  {
                       dup[k]=i;
                       c=1;y++;k++;
                  }
               }
          }
          System.out.println("After removing duplicate elements, new list is ");
          displaylist(dup);
      }
      void displaylist(int a[])
      {
          for(int i=0;i<y;i++)
          {
              System.out.print(a[i]+" ");
          }
      }
 }