// Fig. 20.10: StackInheritance.java
// Derived from class List.
package com.deitel.jhtp5.ch20;

public class StackInheritance extends List {

   // construct stack
   public StackInheritance() 
   { 
      super( "stack" ); 
   }

   // add object to stack
   public synchronized void push( Object object )
   { 
      insertAtFront( object ); 
   }

   // remove object from stack
   public synchronized Object pop() throws EmptyListException
   { 
      return removeFromFront(); 
   }

} // end class StackInheritance


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