code: public short getPropAsShortWithRadix(String key, short def, int radix) {
      return contains(key) ? Short.parseShort(getProp(key), radix) : def;
    }
docs: Get the value of a property as an short, using the given default value if the property is not set.
  
  @param key property key
  @param def default value
  @param radix radix used to parse the value
  @return short value associated with the key or the default value if the property is not set