Javafx DB

import java.sql.*;


import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;


public class Login extends Application {

    @Override
    public void start(Stage primaryStage) {
        Label lbl1=new Label("User Name");
        TextField txt1=new TextField();
        Label lbl2=new Label("Password");
        TextField txt2=new TextField();

        Button btn = new Button("Login");
        btn.setScaleX(1);
        btn.setScaleY(1);

        btn.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                String query="Select * from user";
                System.out.println(query);

                try {

                    Class.forName("com.mysql.jdbc.Driver");

        Connection con=DriverManager.getConnection("jdbc:mysql://www.db4free.net:3306/demo","demo","demo");//try your

          Statement stmt=con.createStatement();


        ResultSet rs=stmt.executeQuery(query);
        while(rs.next())
            System.out.println(rs.getString(1)+"  "+rs.getString(2));

            con.close();

                }
                catch(Exception e){ System.out.println("\nError"+e);}
            }
            });

        VBox root = new VBox();
        root.getChildren().addAll(lbl1,txt1,lbl2,txt2,btn);

        Scene scene = new Scene(root, 600, 550);

        primaryStage.setTitle("User Login");
        primaryStage.setScene(scene);
        primaryStage.show();
    }



    public static void main(String[] args) {
        launch(args);
    }
}