Added getSize() method to MenuManager with test

src/main/java/Application/MenuManager.java

@@ -16,6 +16,12 @@ public class MenuManager {
         menuList.add(menu);
     }
 
+    public int getSize() {
+        if(inRootMenu())
+            return menuList.size();
+        return currentMenu.getSubMenuList().size();
+    }
+
     public void select(int i) {
         if (currentMenu == null)
             this.currentMenu = menuList.get(i);
@@ -41,10 +47,10 @@ public class MenuManager {
     public String getFormattedMenuList() {
         StringBuilder result = new StringBuilder();
         ArrayList<Menu> baseMenuList = this.menuList;
-        if(!inRootMenu())
+        if (!inRootMenu())
             baseMenuList = currentMenu.getSubMenuList();
 
-        for(int i = 0; i < baseMenuList.size(); i++)
+        for (int i = 0; i < baseMenuList.size(); i++)
             result.append(i + 1).append(": ").append(baseMenuList.get(i).getName()).append("\n");
 
         return result.toString();

src/test/java/Application/MenuManagerTest.java

@@ -73,4 +73,13 @@ class MenuManagerTest {
         mm.select(0);
         assertEquals(mm.getFormattedMenuList(), "1: Menu1.1\n");
     }
+
+    @Test
+    void getSize() {
+        assertEquals(mm.getSize(), 2);
+        mm.select(0);
+        assertEquals(mm.getSize(), 1);
+        mm.select(0);
+        assertEquals(mm.getSize(), 0);
+    }
 }