Class AnimalGuess

java.lang.Object
  AnimalGuess

public class AnimalGuess
extends java.lang.Object

The AnimalGuess Java application illustrates the use of the binary tree node class is a small animal-guessing game.

Java Source Code for this class:

http://www.cs.colorado.edu/~main/applications/Animals.java

Constructor Summary

AnimalGuess()

Method Summary

static BTNode<java.lang.String>	beginningTree() Construct a small taxonomy tree with four animals.
static void	instruct() Print instructions for the animal-guessing game.
static void	learn(BTNode<java.lang.String> current) Elicits information from the user to improve a binary taxonomy tree.
static void	main(java.lang.String[] args) The main method prints instructions and repeatedly plays the animal-guessing game.
static void	play(BTNode<java.lang.String> current) Play one round of the animal guessing game.
static boolean	query(java.lang.String prompt)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AnimalGuess

public AnimalGuess()

Method Detail

main

public static void main(java.lang.String[] args)

The main method prints instructions and repeatedly plays the animal-guessing game. As the game is played, the taxonomy tree grows by learning new animals. The String argument (args) is not used in this implementation.

instruct

public static void instruct()

Print instructions for the animal-guessing game.

play

public static void play(BTNode<java.lang.String> current)

Play one round of the animal guessing game.

Parameters:

current - a reference to the root node of a binary taxonomy tree that will be used to play the game.

Postcondition:

The method has played one round of the game, and possibly added new information about a new animal.

Throws:

java.lang.OutOfMemoryError - Indicates that there is insufficient memory to add new information to the tree.

beginningTree

public static BTNode<java.lang.String> beginningTree()

Construct a small taxonomy tree with four animals.

Parameters:

- - none

Returns:

a reference to the root of a taxonomy tree with the animals: kangaroo, mouse, trout, robin.

Throws:

java.lang.OutOfMemoryError - Indicates that there is insufficient memory to create the tree.

learn

public static void learn(BTNode<java.lang.String> current)

Elicits information from the user to improve a binary taxonomy tree.

Parameters:

current - a reference to a leaf node of a binary taxonomy tree

Precondition:

current is a reference to a leaf in a binary taxonomy tree

Postcondition:

Information has been elicited from the user, and the tree has been improved.

Throws:

java.lang.OutOfMemoryError - Indicates that there is insufficient memory to add new information to the tree.

query

public static boolean query(java.lang.String prompt)