Java & Arduino

package arduino;

public class Arduino {

  public static native void delay_ms(short i);

  public static void main(String[] args) {

    Port p = new Port(0x20);

    p.DDRD = 0x20;

    while (true) {

      p.PORTD |= 0x20;

      delay_ms((short) 400);

      p.PORTD &= ~0x20;

      delay_ms((short) 400);

    }

  }

}