started implementing ApplicationFrame.init() -- further work needed

cicaprojekt/ApplicationFrame.java

@@ -1,14 +1,36 @@
 package cicaprojekt;
 
 import javax.swing.*;
+import javax.swing.filechooser.FileNameExtensionFilter;
+import javax.swing.plaf.basic.BasicInternalFrameTitlePane;
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
 
 public class ApplicationFrame implements Runnable
 {
     private JFrame jframe;
+    private JPanel mapselectorpanel;
+    private JPanel gamepanel;
 
 
-    public ApplicationFrame(){
+    public ApplicationFrame(){}
+
+    public void init(){
         jframe = new JFrame();
+        mapselectorpanel = new JPanel();
+
+        List<File> dungeons = new ArrayList<>();
+        File dir = new File(System.getProperty("user.dir"));
+        FileNameExtensionFilter filter = new FileNameExtensionFilter("dungeon");
+
+        for (File f : dir.listFiles()) {
+            if (filter.accept(f)){
+                dungeons.add(f);
+            }
+        }
+
+        //TODO create a JTable and put it into mapselectorpanel
     }
 
     @Override