code: public JBBPTextWriter Str(final String... str) throws IOException {
      JBBPUtils.assertNotNull(str, "String must not be null");
  
      final String oldPrefix = this.prefixValue;
      final String oldPostfix = this.postfixValue;
      this.prefixValue = "";
      this.postfixValue = "";
  
      for (final String s : str) {
        ensureValueMode();
        printValueString(s == null ? "<NULL>" : s);
      }
  
      this.prefixValue = oldPrefix;
      this.postfixValue = oldPostfix;
      return this;
    }
docs: Print string values.
  
  @param str array of string values, must not be null but may contain nulls
  @return the context
  @throws IOException it will be thrown for error