code: public static String readStringForZip(String zipFilePathOrClasspath,
              String entryName, String charsetName) {
          return JMInputStream.toString(
                  getResourceInputStreamForZip(zipFilePathOrClasspath, entryName),
                  charsetName);
      }
docs: Read string for zip string.
  
  @param zipFilePathOrClasspath the zip file path or classpath
  @param entryName              the entry name
  @param charsetName            the charset name
  @return the string