finished initial draft of file io and also added some test cases to disscuss in app

app/src/main/java/ch/zhaw/projekt2/turnierverwaltung/App.java

@@ -3,6 +3,10 @@
  */
 package ch.zhaw.projekt2.turnierverwaltung;
 
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
 public class App {
     public String getGreeting() {
         return "Hello World!";
@@ -10,8 +14,21 @@ public class App {
 
     public static void main(String[] args) {
         System.out.println(new App().getGreeting());
+
         FileIO io = new FileIO();
-        Tournament tournament= new Tournamenttest("hello");
+        Tournament tournament= new Tournamenttest("helloo");
         io.saveTournament(tournament);
+
+
+        List<File> tournaments = io.getList();
+
+        for (File name: tournaments) {
+
+            System.out.println(name.getName());
+        }
+
+        Tournament retrieved = io.loadTournament(tournaments.get(0));
+        System.out.println("data retreived:");
+        System.out.println(retrieved.getName());
     }
 }

app/src/main/java/ch/zhaw/projekt2/turnierverwaltung/FileIO.java

@@ -2,6 +2,7 @@ package ch.zhaw.projekt2.turnierverwaltung;
 
 import java.io.*;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 
@@ -13,15 +14,27 @@ public class FileIO {
     public FileIO() {
         String savePath = System.getProperty("user.dir") + File.separator + "tournierverwaltung_angrynerds";
         this.saveDir = new File(savePath);
+        saveDir.mkdir();
         saves = new File(saveDir, "saves");
+        saves.mkdir();
     }
 
-    public void getList() {
-
+    public List<File> getList() {
+        return Arrays.asList(saves.listFiles());
     }
 
-    public void loadTournament(Tournament tournament) {
+    public Tournament loadTournament(File tournamentFile) {
+        Tournament tournament;
+        try {
+            ObjectInputStream in = new ObjectInputStream(new FileInputStream(tournamentFile));
+            tournament = (Tournament) in.readObject();
+            in.close();
 
+        } catch (ClassNotFoundException | IOException e) {
+            throw new RuntimeException(e);
+        }
+
+        return tournament;
     }
 
     public void saveTournament(Tournament tournament) {
@@ -43,9 +56,4 @@ public class FileIO {
         }
 
     }
-
-    public void getTournament(String storageSpace) {
-
-    }
-
 }

app/src/main/java/ch/zhaw/projekt2/turnierverwaltung/Tournamenttest.java

@@ -0,0 +1,7 @@
+package ch.zhaw.projekt2.turnierverwaltung;
+
+public class Tournamenttest extends Tournament {
+    public Tournamenttest(String name) {
+        super(name);
+    }
+}