Java code

Develop a system that keeps track of preschool students.  There are four types

of preschoolers:  Guppies, who are two; Puppies, who are three; Tigers, who are

four; and Lions, who are five.

Each group needs a special list of school materials.  Guppies need paste and

colored paper.  Puppies need paste, colored paper, and rulers.  Tigers need

the supplies of the younger students plus a notebook and pencil.  Lions need

all of this and scissors.

Ms. Smith teaches the Guppies and Puppies.  Ms. Jones teaches the Tigers.  Ms.

Anderson teaches the Lions.