code: public float getFloat( String key, float defaultValue )
          throws MissingResourceException
      {
          try
          {
              return getFloat( key );
          }
          catch( MissingResourceException mre )
          {
              return defaultValue;
          }
      }
docs: Retrieve a float from bundle.
  
  @param key          the key of resource
  @param defaultValue the default value if key is missing
  
  @return the resource float
  
  @throws MissingResourceException if the requested key is unknown