CS202 Java-160
lpublic boolean isThere(String item)      
l// Returns true if item is in the list; false otherwise
l
l{   
l  int index  =  0;
l while (index < numItems  && 
l      listItems[index].compareTo(item) != 0)
l   index++;
l  return (index < numItems);
l}
160
Observer Method isThere