hcrypto.analyzer
Class DigramAnalyzer

java.lang.Object
  |
  +--hcrypto.analyzer.DigramAnalyzer

All Implemented Interfaces:

Analyzer

public class DigramAnalyzer

extends java.lang.Object

implements Analyzer

Fields inherited from interface hcrypto.analyzer.Analyzer

DECIPHER_LIMIT

Constructor Summary

DigramAnalyzer()

DigramAnalyzer(TextStatistics ts)

Method Summary

java.lang.String	decrypt()
void	doAnalysis() This method performs an analysis of the text.
java.lang.String	getReport() This method is part of the Analyzer interface.
void	run() This method is part of the Analyzer interface.
void	setup(java.lang.String text) This method initializes the Analyzer.
java.lang.String	toString() This method returns the report generated by the analysis.

Methods inherited from class java.lang.Object

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

Constructor Detail

DigramAnalyzer

public DigramAnalyzer()

DigramAnalyzer

public DigramAnalyzer(TextStatistics ts)
               throws java.lang.NullPointerException

Method Detail

setup

public void setup(java.lang.String text)

This method initializes the Analyzer.

Specified by:

setup in interface Analyzer

Parameters:

text - a String pointing to the text being analyzed

run

public void run()

This method is part of the Analyzer interface. It runs the analysis.

Specified by:

run in interface Analyzer

getReport

public java.lang.String getReport()

This method is part of the Analyzer interface. It returns the report generated by the analysis.

Specified by:

getReport in interface Analyzer

toString

public java.lang.String toString()

This method returns the report generated by the analysis.

Overrides:

toString in class java.lang.Object

decrypt

public java.lang.String decrypt()

doAnalysis

public void doAnalysis()

This method performs an analysis of the text. It assumes the text is a word-delimited cryptogram created using a simple substitution cipher.