Why is my JavaFX TableView empty?

Question

I want to populate a TableView and I don\'t know why it\'s empty. I have the following code:

public class StudentTeacherManagementController {
    p         


        

Answer 1

First of all, you must set Cell Value Factory for each column of the table in initialize method:

    @Override
    public void initialize(URL url, ResourceBundle rb) {

        lastnameCol.setCellValueFactory(new PropertyValueFactory<>("lastName"));
        ...

Instead of tableView.getItems.addAll use tableView.setItems.