code: package com.google.checkstyle.test.chapter2filebasic.rule233nonascii;
  
  public class InputAvoidEscapedUnicodeCharacters {
  
      /*warn*/private String unitAbbrev2 = "\u03bcs";
  
      private String unitAbbrev3 = "\u03bcs"; //Greek letter mu ok
  
      private String unitAbbrev4 =
              "\u03bcs"; //Greek letter mu
  
      public Object fooString()
      {
          String unitAbbrev = "μs";
          /*warn*/String unitAbbrev2 = "\u03bcs";
          String unitAbbrev3 = "\u03bcs"; // Greek letter mu, "s" ok
          String fakeUnicode = "asd\tsasd";
          String fakeUnicode2 = "\\u23\\u123i\\u";
          String content = "";
          /*byte order mark ok*/return "\ufeff" + content ;
      }
  
      public Object fooChar()
      {
          /*warn*/char unitAbbrev2 = '\u03bc';
          char unitAbbrev3 = '\u03bc'; // Greek letter mu, "s" ok
          String content = "";
          /*byte order mark ok*/return '\ufeff' + content;
      }
  
      public void multiplyString()
      {
          /*warn*/String unitAbbrev2 = "asd\u03bcsasd";
          String unitAbbrev3 = "aBc\u03bcssdf\u03bc"; /* Greek letter mu, "s"*/ //ok
          /*warn*/String unitAbbrev4 = "\u03bcaBc\u03bcssdf\u03bc";
          /*warn*/String allCharactersEscaped = "\u03bc\u03bc";
      }
  }
  