/*     
    +-------------+     
    | MTList      |      
    +-------------+      
    +-------------+     
 */

//to represent an empty list of ISame objects
class MTList implements AList{

  MTList(){}

  //is this empty list the same as that object   
  public  boolean same(ISame that){ 
    return (that instanceof MTList);
  } 

  //does this empty list contain that object   
  public boolean contains(ISame that){ 
    return false;
  } 
}