DTSUD-57 Implemented the save menu item in the menubar

src/main/java/src/GameField.java

@@ -41,13 +41,13 @@ public class GameField extends JPanel {
 
         int gapi = 0, gapj = 0;
 
-        for (int i = 0; i < nrOfFields; i++) {
+        for (int i = 0, addI = 1; i < nrOfFields; i++) {
 
             gameField[i] = new JPanel[nrOfFields];
             labelField[i] = new JLabel[nrOfFields];
             noteField[i] = new Notes[nrOfFields];
 
-            for (int j = 0; j < nrOfFields; j++) {
+            for (int j = 0, addJ = 1; j < nrOfFields; j++) {
 
                 gameField[i][j] = new JPanel();
                 gameField[i][j].setBorder(new LineBorder(Color.BLACK, 2));

src/main/java/src/MainFrame.java

@@ -135,13 +135,16 @@ public class MainFrame extends JFrame {
 
         JMenu m_menu=new JMenu("Sudoku");
         JMenu m_submenu=new JMenu("Neues Spiel");
+        JMenuItem menu_i7=new JMenuItem("Speichern");
         JMenuItem menu_i1=new JMenuItem("Nochmal");
         JMenuItem menu_i2=new JMenuItem("Tipp");
         JMenuItem menu_i4=new JMenuItem("Einfach");
         JMenuItem menu_i5=new JMenuItem("Mittel");
         JMenuItem menu_i6=new JMenuItem("Schwer");
+
         m_menu.add(menu_i1);
         m_menu.add(menu_i2);
+        m_menu.add(menu_i7);
         m_submenu.add(menu_i4);
         m_submenu.add(menu_i5);
         m_submenu.add(menu_i6);