code: public float getFloat(String name) {
      String valueString = getTrimmed(name);
      Preconditions.checkNotNull(valueString);
      return Float.parseFloat(valueString);
    }
docs: Get the value of the <code>name</code> property as a <code>float</code>.
  If no such property exists or if the specified value is not a valid <code>float</code>,
  then an error is thrown.
  
  @param name property name.
  @throws NumberFormatException when the value is invalid
  @throws NullPointerException if the configuration property does not exist
  @return property value as a <code>float</code>