У меня есть 4 ComboBox
в каждом из них есть 5 элементов: «", "1", "2", "3", "4". Мне нужно сделать, если элемент «1» выбран в ComboBox
, он автоматически исключается из другого. И если элемент «» выбран в ComboBox
, то имя автоматически возвращается в другое. Такая же потребность в других предметах, кроме «».
Я пытался сделать это Вот код:Удаление нескольких идентичных элементов ComboBox
public void vubadditems(ComboBox<String> vub1,ComboBox<String> vub2,ComboBox<String> vub3,ComboBox<String> vub4){
vub1.getItems().addAll(" ","1","2","3","4");
vub2.getItems().addAll(" ","1","2","3","4");
vub3.getItems().addAll(" ","1","2","3","4");
vub4.getItems().addAll(" ","1","2","3","4");
}
public void vubact(ComboBox<String> vub1,ComboBox<String> vub2,ComboBox<String> vub3,ComboBox<String> vub4){
if(vub1.getSelectionModel().getSelectedItem()!=" "){
vub2.getItems().remove(vub1.getSelectionModel().getSelectedItem());
vub3.getItems().remove(vub1.getSelectionModel().getSelectedItem());
vub4.getItems().remove(vub1.getSelectionModel().getSelectedItem());
s=vub1.getSelectionModel().getSelectedItem();
}else{
}
if(vub2.getSelectionModel().getSelectedItem()!=" "){
vub1.getItems().remove(vub2.getSelectionModel().getSelectedItem());
vub3.getItems().remove(vub2.getSelectionModel().getSelectedItem());
vub4.getItems().remove(vub2.getSelectionModel().getSelectedItem());
}
if(vub3.getSelectionModel().getSelectedItem()!=" "){
vub1.getItems().remove(vub3.getSelectionModel().getSelectedItem());
vub2.getItems().remove(vub3.getSelectionModel().getSelectedItem());
vub4.getItems().remove(vub3.getSelectionModel().getSelectedItem());
}
if(vub4.getSelectionModel().getSelectedItem()!=" "){
vub1.getItems().remove(vub4.getSelectionModel().getSelectedItem());
vub2.getItems().remove(vub4.getSelectionModel().getSelectedItem());
vub3.getItems().remove(vub4.getSelectionModel().getSelectedItem());
}
}
public void vubq1ac(){
vubact(q1vub1,q1vub2,q1vub3,q1vub4);
}
public void initialize(){
vubadditems(q1vub1,q1vub2,q1vub3,q1vub4);
vubadditems(q2vub1,q2vub2,q2vub3,q2vub4);
vubadditems(q3vub1,q3vub2,q3vub3,q3vub4);
vubadditems(q4vub1,q4vub2,q4vub3,q4vub4);
vubadditems(q5vub1,q5vub2,q5vub3,q5vub4);
}
q1vub1, q1vub2, q1vub3, q1vub4 загружается из FXML_file
ComboBox
«s
добавить vubq1ac в действие listiner на ComboBox
Но у меня есть некоторые исключения и неправильная работа программы Исключение:
Exception in thread "JavaFX Application Thread" java.lang.IndexOutOfBoundsException
at com.sun.javafx.scene.control.ReadOnlyUnbackedObservableList.subList(ReadOnlyUnbackedObservableList.java:136)
at javafx.collections.ListChangeListener$Change.getAddedSubList(ListChangeListener.java:242)
at com.sun.javafx.scene.control.behavior.ListViewBehavior.lambda$new$177(ListViewBehavior.java:269)
at javafx.collections.WeakListChangeListener.onChanged(WeakListChangeListener.java:88)
at com.sun.javafx.collections.ListListenerHelper$Generic.fireValueChangedEvent(ListListenerHelper.java:329)
at com.sun.javafx.collections.ListListenerHelper.fireValueChangedEvent(ListListenerHelper.java:73)
at com.sun.javafx.scene.control.ReadOnlyUnbackedObservableList.callObservers(ReadOnlyUnbackedObservableList.java:75)
at javafx.scene.control.MultipleSelectionModelBase.clearAndSelect(MultipleSelectionModelBase.java:378)
at javafx.scene.control.ListView$ListViewBitSetSelectionModel.clearAndSelect(ListView.java:1403)
at com.sun.javafx.scene.control.behavior.CellBehaviorBase.simpleSelect(CellBehaviorBase.java:256)
at com.sun.javafx.scene.control.behavior.CellBehaviorBase.doSelect(CellBehaviorBase.java:220)
at com.sun.javafx.scene.control.behavior.CellBehaviorBase.mousePressed(CellBehaviorBase.java:150)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:95)
at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
at javafx.event.Event.fireEvent(Event.java:198)
at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:380)
at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:294)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$354(GlassViewEventHandler.java:416)
at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:415)
at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
at com.sun.glass.ui.View.notifyMouse(View.java:937)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Unknown Source)
Сначала не сравнивайте 'String' с' == 'или'! = ', Вместо этого используйте equals:' vub1.getSelectionModel(). GetSelectedItem(). Equals ("") ' – MBec
@MBec OK i rewrite :? «Если (vub1.getSelectionModel(). GetSelectedItem().equals ("")) {} else {', но программа по-прежнему дает мне исключение –
У вас есть «IndexOutOfBoundsException», поэтому проверьте, что ваш цикл только Iterate превышает максимальный размер ваших списков! –