FillCombo

public void FillCombo(){
    try{
         con = DriverManager.getConnection("jdbc:mysql://localhost:3306/hotel","root","root");
        String sql="Select * from menu where Type='CHINESE'";
        String sql2="Select * from menu where Type='NI'";
        String sql3="Select * from menu where Type='SI'";
        String sql4="Select * from menu where Type='DRINKS'";
         ps=con.prepareStatement(sql);
         ps2=con.prepareStatement(sql2);
         ps3=con.prepareStatement(sql3);
         ps4=con.prepareStatement(sql4);
         rs=ps.executeQuery();
         while(rs.next()){
             String name= rs.getString("ItemName");
             String pp= rs.getString("Price");
             chinese.addItem(name);
             prr.setText(pp);
         }
          rs2=ps2.executeQuery();
         while(rs2.next()){
             String niname= rs2.getString("ItemName");
             String pp2= rs2.getString("Price");
             northindian.addItem(niname);
             prr2.setText(pp2);
         }
         rs3=ps3.executeQuery();
         while(rs3.next()){
             String siname= rs3.getString("ItemName");
             String pp3= rs3.getString("Price");
             southindian.addItem(siname);
             prr3.setText(pp3);
         }
         rs4=ps4.executeQuery();
         while(rs4.next()){
             String drname= rs4.getString("ItemName");
             String pp4= rs4.getString("Price");
             drinks.addItem(drname);
             prr4.setText(pp4);
         }
        }
                 catch(Exception e){
        System.out.println(e);
         }
                 }