driver1.java

java2 primer plus一书源程序

public class Driver1
{
    public void drivePorsche( Porsche2 p )
    {
        System.out.println( "Driving: " + p );
        p.start();
        for( int i=0; i<10; i++ )
        {
            p.accelerate();
            System.out.println( "Current speed: " + p.getCurrentSpeed() );
        }
        for( int i=0; i<5; i++ )
        {
            p.decelerate();
            System.out.println( "Current speed: " + p.getCurrentSpeed() );
        }
        p.stop();
    }

    public void drivePinto( Pinto2 p )
    {
        System.out.println( "Driving: " + p );
        p.start();
        for( int i=0; i<10; i++ )
        {
            p.accelerate();
            p.rollStart();
            System.out.println( "Current speed: " + p.getCurrentSpeed() );
        }
        for( int i=0; i<5; i++ )
        {
            p.decelerate();
            System.out.println( "Current speed: " + p.getCurrentSpeed() );
        }
        p.stop();
    }

    public static void main( String[] args )
    {
        Driver1 d = new Driver1();

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