error in main class

src/main/java/elevator/GUI/Main.java

@@ -16,8 +16,10 @@ public class Main
     private JButton btnStop;
     private Building building;
     private JButton[] floorButtons;
+    private JButton[] UandDBouton;
     private JButton[] moveButtons;
     private JPanel moveButtonPanel;
+    private JPanel[] panelList;
 
     public Main()
     {
@@ -82,6 +84,29 @@ public class Main
         buttonsPanel.add(emergencyPanel);
 
         //button up and down
+        moveButtonPanel = new JPanel(new GridLayout(1,2));
+        moveButtons = new JButton[2];
+        panelList = new JPanel[building.getNbFloor()];
+
+
+            for (int k = 0; k < building.getNbFloor(); k++){
+                    panelList[k] = new JPanel();
+                    //moveButtonPanel =new JPanel();
+                    JButton upButton = new JButton("UP");
+                    JButton downButton = new JButton("DOWN");
+
+                    moveButtons[0] = upButton;
+                    moveButtons[1] = downButton;
+                    moveButtonPanel.add(moveButtons[0]);
+                    moveButtonPanel.add(moveButtons[1]);
+                    panelList[k].add(moveButtonPanel);
+
+                    //moveButtonPanel.setBounds(262,(Building.heightFloor() * (2 - i))/4, 150,Building.heightFloor()/4 );
+
+                  //  moveButtonPanel.setBackground(Color.BLUE);
+
+            }
+
         /*
         moveButtonPanel = new JPanel();
         moveButtonPanel.setBounds(260, 0,40,550);
@@ -115,7 +140,10 @@ public class Main
         //      panel1.add(btnStart);
         //     panel1.add(btnStop);
         panel1.add(buttonsPanel);
-        //   panel1.add(moveButtonPanel);
+        for (int i =0; i < panelList.length; i++){
+            panelList[i].setBounds(262,(Building.heightFloor() * (2 - i))/4, 150,Building.heightFloor()/4  );
+            panel1.add(panelList[i]);
+        }
 
         frame = new JFrame("Elevator Simulator");
         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);