private JList<String> machineList() {
if (machineList == null) {
machineList = ui.createList(boxes().toArray(new String[0]));
machineList.addListSelectionListener(this);
}
return machineList;
}
private JList<String> tubList() {
if (tubList == null) {
tubList = ui.createList(new String[] {});
tubList.addListSelectionListener(this);
}
return tubList;
}
private JList<String> boxList() {
if (boxList == null) {
boxList = ui.createList(boxes().toArray(new String[0]));
boxList.addListSelectionListener(this);
}
return boxList;
}