driver2.java

java2 primer plus一书源程序

public class Driver2
{
    public void drive( Car c )
    {
        System.out.println( "Driving: " + c );
        c.start();
        for( int i=0; i<10; i++ )
        {
            c.accelerate();
            System.out.println( "Current speed: " + c.getCurrentSpeed() );
        }
        for( int i=0; i<5; i++ )
        {
            c.decelerate();
            System.out.println( "Current speed: " + c.getCurrentSpeed() );
        }
        c.stop();
    }

    public static void main( String[] args )
    {
        Driver2 d = new Driver2();

        Porsche2 porsche = new Porsche2();
        d.drive( porsche );
        Pinto2 pinto = new Pinto2();
        d.drive( pinto );
    }
}