如何动态绑定数组到JComboBox？

Question

我将数组绑定到

JComboBox

，如下所示：

String[] arr={"ab","cd","ef"};
final JComboBox lstA = new JComboBox(arr);

但我想将数组动态绑定到

JComboBox

，如下所示：

final JComboBox lstA = new JComboBox();
void bind()
{
    String[] arr={"ab","cd","ef"};
    // bind arr to lstA     
}

如何做？

Answer 1

一个有点奇怪的解决方法（我的:)），可能对你有用

final JComboBox lstA = new JComboBox();
String[] arr={"ab","cd","ef"};
lstA.setModel(new JComboBox(arr).getModel());

Answer 2

使用动态 ComboBoxModel

构建 JComboBox

JComboBox(ComboBoxModel<E> aModel)

像http://docs.oracle.com/javase/7/docs/api/javax/swing/DefaultComboBoxModel.html

m=new DefaultComboBoxModel();
j=JComboBox(m);

然后您可以添加和删除元素：

m.addElement("ab")
m.addElement("cd")

或者，如果您只需将数组放入组合框中：

new JComboBox(new Sring[]{"ab","cd","ef"})

Answer 3

final JComboBox lstA = new JComboBox();
void bind()
{
  String[] arr={"ab","cd","ef"};
  // bind arr to lstA 
  lstA.setModel(new DefaultComboBoxModel<String>(arr));    
}