public
class Main
{
   public static void main (String args[])
   {
      Tablica tab = new Tablica();
      int value = tab.getElement(20);
      if (value == -1){
         System.out.println("Nie ma elementu numer 20!");
      }
      else{
         System.out.println("Element nr 20 to: " + value);
      }
   }
}

public
class Tablica
{
   int tab[];
   public Tablica()
   {
      tab = new int[5];
   }
   int getElement(int index)
   {
      if ((index >=0) && (index < 5))
         return tab[index];
      else
         return -1;
   }
}
