java - Outputting null -


I am having a problem in which the output of the list (n + 1) returns empty output rather than returning . Is there something I see? 

  Public Stable ListEnginement Millitem (Listmill Head, Int N) {if (n == 0) {return head; } And if (head == zero) {return tap; } And {return getItem (head.getNext (), n + 1); }}    
 
 
 This code does not understand. If the head is not empty, then it will call  getItem (head.getNext (), n + 1) , but in the end,  head  will be  null < / Code> (and  n  will never go to) and so it will return you  null  maybe you mean  
  return getItem (head .getNext (), n-1) .

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