// same as Box but T extends Comparable so that we can compare T's, and ComparableBox implements Comparable so that
// we can compare Box's.  Notice we are allowing for two different types of comparisons, one is for the instance datum
// itself (item) and one is for two ComparableBoxes.  

public class ComparableBox<T extends Comparable<T>> implements Comparable<T>
{
	private T item;					// our instance datum is an Object of type T which must be Comparable
	
	public ComparableBox(T item)	// constructor
	{
		this.item=item;
	}
	
	public T get()					// accessor
	{
		return item;
	}
	
	public void set(T item)			// mutator
	{
		this.item=item;
	}

	public int compareTo(ComparableBox<T> item2)	// comareTo to implement Comparable for Box
	{
		return compareTo(item2.get());		// we are comparing this to item2, so T must implement Comparable as well
	}

	@Override								// here we have a compareTo for a T, not a ComparableBox<T>, this is
	public int compareTo(T item2)			// used to actually get the comparison between two T's
	{
		return item.compareTo(item2);
	}
	
	public String toString()				
	{
		if(item!=null) return ""+item;
		else return "not set";
	}
}