question: SpeedPredictor ( ) { times = new double [ VECTOR_LENGTH ] ; WtWindowManager wm = WtWindowManager . getInstance ( ) ; prediction = MathHelper . parseDoubleDefault ( wm . getProperty ( SPEED_PROPERTY , Double . toString ( INITIAL_PREDICTED_SPEED ) ) , INITIAL_PREDICTED_SPEED ) ; jitter = MathHelper . parseDouble ( wm . getProperty ( JITTER_PROPERTY , "0.0" ) ) ; double average = TURN_LENGTH / prediction ; for ( int i = 0 ; i < VECTOR_LENGTH ; i ++ ) { times [ i ] = average ; } }
target:  Create a new SpeedPredictor with default initial prediction and history corresponding to that.