public void upIcon()
 {

 int tablesAvaible=5;
 int chair=0;

   for(int i=0; i< tableNum.size(); i++)
   {
        if(filtered.contains(i) && tableNum.get(i) == 1)
        {
            jLabel3.setText(tableNum+" tables available on chosen date. "+chair+"taken.");
            jButton2.setIcon(new javax.swing.ImageIcon("booked1.png"));
            tablesAvaible --;
            chair = chair + quantities.get(i);
        }else if(filtered.contains(i) && tableNum.get(i) == 2)
        {
            jLabel3.setText(tableNum+" tables available on chosen date. "+chair+"taken.");
            jButton2.setIcon(new javax.swing.ImageIcon("booked2.png"));
            tablesAvaible --;
            chair = chair + quantities.get(i);
        }
 }