broadened file check to look only at printable ASCII

  <component name="ProjectKey">

    <option name="state" value="project://e2804f05-5315-4fc6-a121-c522a6c26470" />

  </component>

  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_3" project-jdk-name="1.8" project-jdk-type="JavaSDK">

  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="17" project-jdk-type="JavaSDK">

    <output url="file://$PROJECT_DIR$/out" />

  </component>

</project>

 No newline at end of file

package edu.bu.ec504.hw1p3;

import edu.bu.ec504.hw1p3.compressors.CharByCharCompressor;

import edu.bu.ec504.hw1p3.compressors.LineByLineCompressor;

import edu.bu.ec504.hw1p3.testing.Tester;

import java.io.IOException;

public class Main {

  // CONSTANTS

  private final static String URLExample = "https://en.wikipedia.org/wiki/Data_compression_ratio"; // the default URL to test

  private final static String StringExample = "can you can a can as a canner can can a can?";

  public static void main(String[] args) {

    try {

      //System.out.println(Tester.testUrl(new LineByLineCompressor(), URLExample));

      System.out.println(Tester.testString(new CharByCharCompressor(), StringExample));

    } catch (IOException e) {

      throw new RuntimeException(e);

    } catch (ClassNotFoundException e) {

      throw new RuntimeException(e);

    }

  }

}

package edu.bu.ec504.hw1p3;

package edu.bu.ec504.hw1p3.compressors;

import java.io.BufferedReader;

import java.io.IOException;

package edu.bu.ec504.hw1p3;

package edu.bu.ec504.hw1p3.compressors;

import java.io.BufferedReader;

import java.io.Serializable;

package edu.bu.ec504.hw1p3;

package edu.bu.ec504.hw1p3.compressors;

import java.io.BufferedReader;

import java.io.IOException;