How to check if any item is selected in JavaFX ComboBox

Question

What is the simple way to check whether any item is selected in JavaFX ComboBox or if it is left without selected item?

Checking for ComboBox in this state should return FALSE:

Checking for ComboBox in this state should return TRUE:

Answer 1

You can use

boolean isMyComboBoxEmpty = myComboBox.getSelectionModel().isEmpty();

Which also works, if you have a null item among the ComboBox items.

Answer 2

于是我找到了一个简单的方法：

boolean isMyComboBoxEmpty = (myComboBox.getValue() == null);

Answer 3

!(cmbDia.getValue()==null) && !(cmbMes.getValue()==null) && !(cmbAno.getValue()==null)//fue todo gracias :)