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我必须为我的Swing项目设计一个fleetmanagment我创建了一个添加按钮,但我无法弄清楚必须使删除按钮的任何帮助吗?这是我的代码为addbutton。Swing - 添加按钮JList
addbutton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
//make sure you preserve the previously selected list items
int size = rightlist.getModel().getSize();
Set objects = new LinkedHashSet();
for (int i = 0; i < size; i++) {
objects.add(rightlist.getModel().getElementAt(i));
}
objects.addAll(Arrays.asList(leftlistfreight.getSelectedValues()));
rightlist.setListData(objects.toArray());
}
});
编辑!
的ArrayList代码
List<FreightBoats> freightBoat = new ArrayList<FreightBoats>();
freightBoat.add(new FreightBoats("Boat Name : Stefan |","This Boat can Carry Conitainer : ",25000));
freightBoat.add(new FreightBoats("Boat Name : Sminroff |","This Boat can Carry Conitainer : ",30000));
freightBoat.add(new FreightBoats("Boat Name : Container 2000 |","This Boat can Carry Conitainer : ",2500));
freightBoat.add(new FreightBoats("Boat Name : Windows |","This Boat can Carry Conitainer : ",25200));
freightBoat.add(new FreightBoats("Boat Name : Unhuman |","This Boat can Carry Conitainer : ",200));
freightBoat.add(new FreightBoats("Boat Name : ElPolako |","This Boat can Carry Conitainer : ",300000));
freightBoat.add(new FreightBoats("Boat Name : BrainDead |","This Boat can Carry Conitainer : ",10000));
freightBoat.add(new FreightBoats("Boat Name : WSHR | ","This Boat can Carry Conitainer : ",34005));
freightBoat.add(new FreightBoats("Boat Name : Grolsch ","This Boat can Carry Conitainer : ",10565
我想我需要使用ArrayList beacouse我保持我的船名在一个数组中。我把数组代码。检查出来,告诉我是否有另一种替代方案可以使用。谢谢 –
@JohnJohnson,'我想我需要使用ArrayList beacouse,我把我的船名保存在一个数组中。' - 不,你不知道。你的应用程序的设计是错误的。如果您在JList中显示数据,则数据存储在ListModel中。不需要单独的数组。 '如果还有其他选择' - Swing组件的设计和使用基于模型 - 视图 - 控制器设计。我已经提出了适当的解决方案,并指出了一个可行的例子。使用单独的数组违背了这个设计原则。阵列不需要。 ListModel有访问数据的方法。 – camickr