diff --git a/.idea/misc.xml b/.idea/misc.xml
index f16dea7..5d98256 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -4,7 +4,7 @@
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/src/main/java/eu/midnightdust/yaytris/ui/ScoreMenu.java b/src/main/java/eu/midnightdust/yaytris/ui/ScoreMenu.java
index 8e70399..cd6c804 100644
--- a/src/main/java/eu/midnightdust/yaytris/ui/ScoreMenu.java
+++ b/src/main/java/eu/midnightdust/yaytris/ui/ScoreMenu.java
@@ -43,7 +43,7 @@ public class ScoreMenu extends AbstractMenu {
     }
 
     public void updateScore(int score) {
-        this.currentScoreLabel.setText("Score: %s".formatted(score));
+        this.currentScoreLabel.setText(String.format("Score: %s", score));
         this.repaint();
     }
 
@@ -51,7 +51,7 @@ public class ScoreMenu extends AbstractMenu {
         LocalTime timeElapsed = LocalTime.ofNanoOfDay(LocalTime.now().toNanoOfDay() - startingTime.toNanoOfDay());
 
         DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern(timeElapsed.getHour() > 0 ? "HH:mm:ss" : "mm:ss");
-        this.currentTimeLabel.setText("Zeit: %s".formatted(timeFormatter.format(timeElapsed)));
+        this.currentTimeLabel.setText(String.format("Zeit: %s", timeFormatter.format(timeElapsed)));
         this.repaint();
     }
 
diff --git a/src/main/java/eu/midnightdust/yaytris/util/NightJson.java b/src/main/java/eu/midnightdust/yaytris/util/NightJson.java
index fad0a94..3b90498 100644
--- a/src/main/java/eu/midnightdust/yaytris/util/NightJson.java
+++ b/src/main/java/eu/midnightdust/yaytris/util/NightJson.java
@@ -17,15 +17,8 @@ public class NightJson {
     Class<?> jsonClass;
     String fileLocation;
 
-    public NightJson(Class<?> jsonClass) {
-        this.jsonClass = jsonClass;
-    }
     public NightJson(Class<?> jsonClass, String fileLocation) {
-        this(jsonClass);
-        this.fileLocation = fileLocation;
-    }
-
-    public void setFileLocation(String fileLocation) {
+        this.jsonClass = jsonClass;
         this.fileLocation = fileLocation;
     }
 
@@ -40,10 +33,10 @@ public class NightJson {
                 Field field = it.next();
                 jsonFile.write("\t");
                 if (field.getType() == Comment.class) {
-                    jsonFile.write("// %s\n".formatted(((Comment) field.get(null)).commentString));
+                    jsonFile.write(String.format("// %s\n", ((Comment) field.get(null)).commentString));
                     continue;
                 }
-                jsonFile.write((field.getType() == String.class || field.getType().isEnum() ? "\"%s\": \"%s\"" : "\"%s\": %s").formatted(field.getName(), field.get(null)));
+                jsonFile.write(String.format(field.getType() == String.class || field.getType().isEnum() ? "\"%s\": \"%s\"" : "\"%s\": %s", field.getName(), field.get(null)));
                 jsonFile.write(it.hasNext() ? ",\n" : "\n");
             }
             jsonFile.write("}");
@@ -85,17 +78,7 @@ public class NightJson {
                 try { field = jsonClass.getField(key);
                 } catch (NoSuchFieldException e) {continue;}
 
-                Object value = switch (field.getType().getName()) {
-                    case "byte" -> Byte.parseByte(currentString);
-                    case "int" -> Integer.parseInt(currentString);
-                    case "long" -> Long.parseLong(currentString);
-                    case "float" -> Float.parseFloat(currentString);
-                    case "double" -> Double.parseDouble(currentString);
-                    default -> currentString;
-                };
-                if (field.getType().isEnum()) value = Arrays.stream(field.getType().getEnumConstants())
-                        .filter(enumConstant -> Objects.equals(enumConstant.toString(), currentString)).findFirst().orElseThrow();
-                field.set(field, value);
+                field.set(field, stringToObj(field, currentString));
             }
             jsonFile.close();
         } catch (IOException | IllegalAccessException | NoSuchElementException e) {
@@ -104,6 +87,19 @@ public class NightJson {
         }
     }
 
+    private Object stringToObj(Field field, String currentString) {
+        switch (field.getType().getName()) {
+            case "byte": return Byte.parseByte(currentString);
+            case "int": return Integer.parseInt(currentString);
+            case "long": return Long.parseLong(currentString);
+            case "float": return Float.parseFloat(currentString);
+            case "double": return Double.parseDouble(currentString);
+        }
+        if (field.getType().isEnum()) return Arrays.stream(field.getType().getEnumConstants())
+                .filter(enumConstant -> Objects.equals(enumConstant.toString(), currentString)).findFirst().orElseThrow();
+        else return currentString;
+    }
+
     public static class Comment {
         final String commentString;
         public Comment(String commentString) {