Java中如何将一个JList中的元素转移到另一个JList中?
我在 swing GUI 上有两个 JList。现在我希望当用户单击按钮(例如 TransferButton)时,将从一个 JList 中选定的元素从第一个 JList 添加到第二个 JList ,并从第一个 JList 中删除这些选定元素。
I have two JList on a swing GUI. Now I want that when a user clicks on a button (say TransferButton) the selected elements from one JList is added from the first JList to the second JList and remove those selected elements from the first JList.
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该模型不知道选择。
JList 提供了多种方法来获取所选项目或所选索引。使用这些方法获取项目并将它们添加到其他列表的模型中。
The model doesn't know about selection.
The JList provides several methods to get the selected item or selected index. Use those methods to get the items and add them to the other list's model.
您有两个
JList
,然后您还有它们各自的ListModel
。根据您实现它们的方式,您可以从一个模型中删除元素并将它们添加到另一个模型中。但请注意,ListModel
接口默认情况下只关心元素访问,因此您可能必须实现add
和remove
方法自己去那里。You have two
JList
s, then you also have their respectiveListModel
s. Depending on how you implemented them you can just remove the elements from one model and add them to the other. Note, though, that theListModel
interface doesn't care for more than element access by default, so you probably have to implementadd
andremove
methods there by yourself.假设您有两个 JList 组件,如上面代码中所述(左和右)。您必须编写以下代码以将选定的值从左侧 JList 传输到右侧 JList。
Let's imagine you have two JList components as described in the code above (left and right). You must write following code to transfer selected values from the left to the right JList.