public void tampil(int port){
            try {
                Class.forName("com.mysql.jdbc.Driver");
                java.sql.Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/port","root","");
                java.sql.Statement st = con.createStatement();
                String query = "select nama_pc,ip,mac,aset from pc where id_pc =\"" + port + "\"";
                ResultSet rs = st.executeQuery(query);
            rs.next();

                   // JOptionPane.showMessageDialog(this, "Data Komputer tersimpan...");
String nm = rs.getString(1);
   tfnama.setText(nm);
String ip = rs.getString(2);
  tfip.setText(ip);
String mac = rs.getString(3);
  tfmac.setText(mac);
String aset = rs.getString(4);
  tfaset.getText();
//dispose();
            }catch(Exception e){
                 System.out.println(e.getMessage());
         }


    }