Add start and stop

src/soon/PlayZustand.java

+package soon;
+
+public class PlayZustand extends Zustand {
+	
+	public PlayZustand(Soon s) {
+		super(s);
+	}
+	
+	public void stopButton() {
+		s.stopPlay();
+		s.setZustand(s.getStopZustand());
+	}
+}

src/soon/Soon.java

+package soon;
+
+public class Soon {
+	Zustand stopZustand;
+	Zustand playZustand;
+	
+	Zustand zustand;
+	
+	public Soon () {
+		stopZustand = new StopZustand(this);
+		playZustand = new PlayZustand(this);
+		zustand = stopZustand;
+	}
+
+	public Zustand getStopZustand() {
+		return stopZustand;
+	}
+
+	public Zustand getPlayZustand() {
+		return playZustand;
+	}
+
+	public void setZustand(Zustand zustand) {
+		this.zustand = zustand;
+	}
+	
+	public void playButton() {
+		zustand.playButton();
+	}
+	
+	public void stopButton() {
+		zustand.stopButton();
+	}
+	
+	public void startPlay() {
+		System.out.println("Musik an");
+	}
+	
+	public void stopPlay() {
+		System.out.println("Musik aus");
+	}
+	
+	public String toString() {
+		StringBuffer result = new StringBuffer();
+		result.append("\nSoon MP3 Player");
+		result.append("\n---------------");
+		result.append("\nSoon available soon in MyCross-Platform Software Store\n");
+		return result.toString();
+	}
+}

src/soon/SoonTestDrive.java

+package soon;
+
+public class SoonTestDrive {
+
+	public static void main(String[] args) {
+
+		Soon player = new Soon();
+		
+		System.out.println(player);
+		player.playButton();
+		player.stopButton();
+	}
+
+}

src/soon/StopZustand.java

+package soon;
+
+public class StopZustand extends Zustand {
+	
+	public StopZustand(Soon s) {
+		super(s);
+	}
+	
+	public void playButton() {
+		s.startPlay();
+		s.setZustand(s.getPlayZustand());
+	}
+}

src/soon/Zustand.java

+package soon;
+
+public abstract class Zustand {
+	protected Soon s;
+
+	public Zustand(Soon s) {
+		this.s = s;
+	}
+	
+	public void playButton() {};
+	public void stopButton() {};
+}