Calendar cal = Calendar.getInstance();
        int year = cal.get(Calendar.YEAR);    // The current year as an int
        int month = (cal.get(Calendar.MONTH) + 1);

        String tahun_ntpd = Integer.toString(year);
        String bulan_ntpd = Integer.toString(month);

        String test="";
        try{
            Class.forName("com.mysql.jdbc.Driver");
            Connection con=DriverManager.getConnection(
            "jdbc:mysql://localhost:3306/masterpendapatan","root","");
            //here sonoo is database name, root is username and password
            Statement stmt=con.createStatement();
            ResultSet rs=stmt.executeQuery("select * from ntpd where year = '" + year +"' and month = '" + month +"'");

            //PreparedStatement stmt = con.prepareStatement("select * from ntpd where year = '" + tahun_ntpd +"' and month = '" + bulan_ntpd +"'");

            //ResultSet rs = stmt.executeQuery();
            //System.out.println(rs);
            while(rs.next())
            System.out.println(year);
            test += rs.getString(2);
            con.close();
            }catch(Exception e){
                log.error("Some exception has been thrown", e);
            }