jscrollpane拖拽时出现重影

Question

jscrollpane拖拽时出现重影

public class Selectgui2 {
      JFrame f=new JFrame("text");
      Container con = f.getContentPane();

      JPanel p=new JPanel();
      JPanel p1=new JPanel();
      JPanel p2=new JPanel();
      JPanel p3=new JPanel();
      JScrollPane jsp1=new JScrollPane();

      JLabel ptop = new JLabel("信息查询");
      JLabel p1top = new JLabel("在住客人列表");
      JLabel p2top = new JLabel("预定客人列表");
      JLabel p3top = new JLabel("历史客人列表");



      public void init(){

            p.setLayout(null);
            p.setBounds(0, 0, 800, 145);
            p.setBackground(new Color(233, 33, 00, 23));

            p1.setLayout(null);
            p1.setBounds(0, 145, 800, 555);
            p1.setBackground(new Color(233, 33, 00, 23));
            createJTable(p1);
            p1.setVisible(false);


            p2.setLayout(null);
            p2.setBounds(0, 145, 800, 555);
            p2.setBackground(new Color(233, 33, 00, 23));
            createJTable1(p2);
            p2.setVisible(false);

            p3.setLayout(null);
            p3.setBounds(0, 145, 800, 555);
            p3.setBackground(new Color(233, 33, 00, 23));
            createJTable2(p3);
            p3.setVisible(false);



         JButton bt1 = new JButton("在住客人");
         JButton bt2 = new JButton("预定客人");
         JButton bt3 = new JButton("历史客人");
         JButton bt4 = new JButton("返回主界面");

            ptop.setBounds(365, 20,120 , 20);
            ptop.setFont(new Font("Arials", 0, 20));

            p1top.setBounds(340, 0,120 , 20);
            p1top.setFont(new Font("Arials", 0, 20));

            p2top.setBounds(340, 0,120 , 20);
            p2top.setFont(new Font("Arials", 0, 20));

            p3top.setBounds(340, 0,120 , 20);
            p3top.setFont(new Font("Arials", 0, 20));

            bt1.setBounds(165, 70, 120, 40);
            bt1.setFont(new Font("Arials", 0, 17));
            bt1.setBackground(new Color(229, 241, 251));
            bt1.addActionListener(new livinghandler());

            bt2.setBounds(345, 70, 120, 40);
            bt2.setFont(new Font("Arials", 0, 17));
            bt2.setBackground(new Color(229, 241, 251));
            bt2.addActionListener(new bookinghandler());

            bt3.setBounds(525, 70, 120, 40);
            bt3.setFont(new Font("Arials", 0, 17));
            bt3.setBackground(new Color(229, 241, 251));
            bt3.addActionListener(new leavehandler());

            bt4.setBounds(525, 20, 120, 40);
            bt4.setFont(new Font("Arials", 0, 17));
            bt4.setBackground(new Color(229, 241, 251));


            p.add(bt4);
            p.add(bt3);
            p.add(bt2);
            p.add(bt1);
            p.add(ptop);

            p1.add(p1top);
            p2.add(p2top);
            p3.add(p3top);


         con.add(p);
         con.add(p1);
         con.add(p2);
         con.add(p3);


         f.setLayout(null);
         f.setLocationRelativeTo(null);
         f.setVisible(true);
         f.setSize(800, 500);
         f.setResizable(false);
         f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
//      f.setMaximizedBounds(null);



     }
      public void createJTable(JPanel jp ) {


            JScrollPane jsp=new JScrollPane();


            String[] columnNames = { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "房号"};
            Object[][] obj={
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "1"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "2"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "3"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "4"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "5"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "6"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "7"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "8"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "9"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "0"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "2"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "3"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "4"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "5"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "6"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "7"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "8"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "9"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "0"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "2"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "3"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "4"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "5"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "6"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "7"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "8"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "9"},
                    { "证件号码", "姓名", "性别" ,"证件类型", "电话号码", "0"}

            };

            JTable table = new JTable(obj, columnNames);

            table.setRowHeight(30);
            table.getColumnModel().getColumn(0).setPreferredWidth(200);
            table.getColumnModel().getColumn(1).setPreferredWidth(100);
            table.getColumnModel().getColumn(2).setPreferredWidth(90);
            table.getColumnModel().getColumn(3).setPreferredWidth(142);
            table.getColumnModel().getColumn(4).setPreferredWidth(160);
            table.getColumnModel().getColumn(5).setPreferredWidth(90);


            table.setBounds(0,0,782, 200);
            table.setEnabled(false);
            table.setRequestFocusEnabled(false);
            table.setRowSelectionAllowed(false);
            table.setBackground(new Color(233, 33, 00, 23));
            table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); 
            table.setVisible(true); 
            table.setFont(new Font("Arials", 0, 16));
            setTableColumnCenter(table);

            table.getTableHeader().setEnabled(false);
            table.getTableHeader().setReorderingAllowed(false);
            table.getTableHeader().setResizingAllowed(false);
            table.getTableHeader().setBackground(new Color(233, 33, 00, 23));
            table.getTableHeader().setVisible(true);

            table.getTableHeader().setEnabled(false);
            table.getTableHeader().setReorderingAllowed(false);
            table.getTableHeader().setResizingAllowed(false);




            jsp.setBounds(0,40, 800, 200);
            jsp.setVisible(true);
            jsp.setBackground(new Color(233, 33, 00, 23));



            jsp.getViewport().add(table);
            jp.add(jsp);


        }