How to add columns in my table?

Guys, im not being able to add my columns in the table, can anyone help me?

Thank you!
TableView<String> tv = new TableView<>();
  tv.setVisible(true);
        
       TableColumn firstNameCol = new TableColumn();
       TableColumn lastNameCol = new TableColumn();
       TableColumn emailCol = new TableColumn();
       tv.getColumns().add(0,firstNameCol); 

It allows to use javafx.scene.control.TableColumn, not javax.swing.table.TableColumn :)

Tags: Java

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