added comment

HeatUp/src/de/heatup/audio/AudioPlayer.java

@@ -10,8 +10,11 @@ import javax.sound.sampled.LineListener;
 
 public class AudioPlayer {
 	
-	public AudioPlayer(/** String file */) {
-		///this.file = file;
+	public AudioPlayer() { 
+		/** oder anstelle pfad an die methode play, 
+		 * immer an die klasse und dann einen Player für jedes Soundfile
+		 */
+		
 	}
 	
 	public void play(String file) {
@@ -27,7 +30,13 @@ public class AudioPlayer {
 				}
 			});
 			
-			clip.open(AudioSystem.getAudioInputStream(new File(file)));
+			File f = new File(file);
+			if(!f.exists()) {
+				System.out.println("File not found: " + f.getAbsolutePath());
+				return;
+			}
+			
+			clip.open(AudioSystem.getAudioInputStream(f));
 			clip.start();
 			
 		} catch (Exception e) {