[英]How do I load a JComboBox with values from an Array or ArrayList?
I need to put the following array into a JComboBox and then store the selected value when the "Submit" button is clicked. 我需要将以下数组放入JComboBox,然后在单击“提交”按钮时存储选择的值。
listOfDepartments = new String[5];
listOfDepartments[0] = "Mens Clothing";
listOfDepartments[1] = "Womens Clothing";
listOfDepartments[2] = "Childrens Clothing";
listOfDepartments[3] = "Electronics";
listOfDepartments[4] = "Toys";
//Department: ComboBox that loads from array
// Store values
JButton buttonSubmit = new JButton();
buttonSubmit.setText("Submit");
container.add(buttonSubmit);
buttonSubmit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent evt) {
//store value from combobox in a variable
}
});
First, create a model... 首先,建立模型...
DefaultComboBoxModel model = new DefaultComboBoxModel(listOfDepartments);
comboBox.setModel(model);
Second, get the selected value when the actionPerformed
event is raised... 其次,在引发actionPerformed
事件时获取选定的值...
String value = (String)comboBox.getSelectedItem();
Take a look at How to Use Combo Boxes for more details. 查看更多如何使用组合框 。
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