The asterisk (*) is called the ______________ operator.

Discuss the differences between the various duration estimating methods and identify advantages or disadvantages between them.

What will be an ideal response?

Kim created the following interface for Heap. Any comments?

``` public interface Heap { public void add( Comparable element ); public void setComparator( Comparator c ); public E top(); public E peek(); public void clear(); public int size(); public boolean isEmpty(); } ```