Java 从枚举填充 Swing JComboBox
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Populating Swing JComboBox from Enum
提问by mhansen
I would like to populate a java.swing JComboBoxwith values from an Enum.
我想java.swing JComboBox用来自Enum.
e.g.
例如
public enum Mood { HAPPY, SAD, AWESOME; }
and have these three values populate a readonly JComboBox.
并让这三个值填充 readonly JComboBox。
Thanks!
谢谢！
采纳答案by Pierre
try:
尝试：
new JComboBox(Mood.values());
回答by John Doe
The solution proposed by @Pierre is good. Usually you use a DefaultComboBoxModel or a ComboBoxModelor bindings to the ComboBoxModel for more complex stuff.
@Pierre 提出的解决方案很好。通常你使用 DefaultComboBoxModel 或ComboBoxModel或绑定到 ComboBoxModel 来处理更复杂的事情。
By default a JComboBox is not editable.
默认情况下，JComboBox 不可编辑。
回答by Andrii Nemchenko
If you don't want to (or can't) change initialization with default constructor, then you can use setModel()method:
如果您不想（或不能）使用默认构造函数更改初始化，则可以使用setModel()方法：
JComboBox<Mood> comboBox = new JComboBox<>();
comboBox.setModel(new DefaultComboBoxModel<>(Mood.values()));
回答by M. Hamdi
This can also be achieved using only the default constructor and without using setModel()method:
这也可以仅使用默认构造函数而不使用setModel()方法来实现：
JComboBox<Mood> comboBox_mood = new JComboBox<>();
