Horse[] spaces;
/** Returns the index of the space that contains the horse with the specified name.
 * Precondition: No two horses in the barn have the same name.
 * @param name the name of the horse to find
 * @return the index of the space containing the horse with the specified name;
 * -1 if no horse with the specified name is in the barn.
 */
 public int findHorseSpace(String name){ 
	int out=-1;	
	for(int i=0; i<spaces.length; i++){
		Horse h=spaces[i];
		if(h!=null&&h.getName().equals(name)){
			out=i;
		}
	} 
	return out;
 } 
 
 public int findHorseSpace(String name){ 	
	for(int i=0; i<spaces.length; i++){
		if(spaces[i]!=null&&spaces[i].getName().equals(name)){
			return i;
		}
	} 
	return -1;
 } 
 
 public int findHorseSpace(String name){ 	
	for(int i=0; i<spaces.length; i++){
		if(spaces[i]!=null){
			if(spaces[i].getName().equals(name)){
				return i;
			}
		}
	} 
	return -1;
 } 
 
 public int findHorseSpace(String name){ 
	int out=-1;	
	while(out<0){
		Horse h=spaces[i];
		if(h!=null&&h.getName().equals(name)){
			out=i;
		}
	} 
	return out;
 }