Bind value of combobox to attribute of object

I have a list with available VLANs inside my combobox. How can I bind the selected VLAN of the combobox to my property of the object?

class BreadCrumb{
private String vlan = “”;

private List availableVLAN = new ArrayList<>(Arrays.asList(“30”, “31”, “90”, “100”));

public String getCurrentVLAN() {
return currentVLAN;
}

public void setCurrentVLAN(String vlan){
this.vlan = vlan;
}
}

thx in advantage

You can use a Binder