3. Object Creation

• Defining a class does not create any objects

• Java code has to be written to create objects from a user-defined class. For example,

  
      Locomotive loco = new Locomotive();
      BoxCar box = new BoxCar( 50 );     // a box car that weighs 50 ton
      Train freight = new Train( loco, box ); // create a train with 1 loco and 1 boxcar