conrrol

package fx8;

import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.*;

public class mc implements Initializable {


       @FXML
private Button btn;

@FXML

private Label lx;
    
    @Override
    public void initialize(URL url, ResourceBundle rb) {
       
    }    

@FXML

public void bt(ActionEvent event) {

lx.setText("12345");

}


}