Class HuffmanCode

java.lang.Object
  HuffmanCode

public class HuffmanCode
extends java.lang.Object

Driver to create Huffman codes and encoded strings.

Constructor Summary

HuffmanCode(java.lang.String initialString)
Establish this Huffman code based on an initial string.

Method Summary

java.lang.String	decode(java.lang.String encoded) Decode a string using this Huffman code.
java.lang.String	encode(java.lang.String cleartext) Encode a string using this Huffman code.
java.util.Map<java.lang.Character,java.lang.String>	getCodeMap() Retrieve the internal Huffman Code Map.
HNode	getCodeTree() Retrieve the internal Huffman Code Tree.

Methods inherited from class java.lang.Object

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

Constructor Detail

HuffmanCode

public HuffmanCode(java.lang.String initialString)

Establish this Huffman code based on an initial string.

Parameters:

initialString - the initial string used to create the code

Method Detail

encode

public java.lang.String encode(java.lang.String cleartext)

Encode a string using this Huffman code.

Parameters:

cleartext - the string to encode

Returns:

the encoded string

decode

public java.lang.String decode(java.lang.String encoded)

Decode a string using this Huffman code.

Parameters:

encoded - the string to decode

Returns:

the decoded string

getCodeMap

public java.util.Map<java.lang.Character,java.lang.String> getCodeMap()

Retrieve the internal Huffman Code Map.

Returns:

the code map for this Huffman Code

getCodeTree

public HNode getCodeTree()

Retrieve the internal Huffman Code Tree.

Returns:

the code tree for this Huffman Code