인터페이스특징
public interface GPS {
public void getCoordinates();
}
public interface Radio {
public void startRadio();
public void stopRadio();
}
public class Smartphone implements GPS,Radio {
public void getCoordinates() {
// return some coordinates
}
public void startRadio() {
// start Radio
}
public void stopRadio() {
// stop Radio
}
}