Setup Panel with label nr 7

src/main/java/src/MainFrame.java

@@ -61,6 +61,9 @@ public class MainFrame extends JFrame {
         JPanel jPanel6 = setupNums("6");
         boxPanel.add(jPanel6);
 
+        JPanel jPanel7 = setupNums("7");
+        boxPanel.add(jPanel7);
+
         JButton back = new JButton();
         back.setVisible(true);
         back.setBounds(5, 5, 100, 25);