created Method initphase in Game.java

src/main/java/ch/zhaw/pm2/racetrack/Game.java

@@ -2,6 +2,8 @@ package ch.zhaw.pm2.racetrack;
 
 import ch.zhaw.pm2.racetrack.given.GameSpecification;
 
+import java.io.File;
+import java.util.ArrayList;
 import java.util.List;
 
 import static ch.zhaw.pm2.racetrack.PositionVector.Direction;
@@ -14,6 +16,22 @@ import static ch.zhaw.pm2.racetrack.PositionVector.Direction;
 public class Game implements GameSpecification {
     public static final int NO_WINNER = -1;
 
+    UserInterface userInterface;
+
+    public Game(String welcometext) {
+        userInterface = new UserInterface(welcometext);
+    }
+
+    public void initphase() {
+        File folder = new File("your/path");
+        File[] listOfFiles = folder.listFiles();
+        List<String> tracks = new ArrayList<>();
+        for(File file : listOfFiles){
+            tracks.add(file.getName());
+        }
+        userInterface.selectOption("Select Track file", tracks);
+    }
+
     /**
      * Return the index of the current active car.
      * Car indexes are zero-based, so the first car is 0, and the last car is getCarCount() - 1.