[java] How do I populate a JComboBox with an ArrayList?

By combining existing answers (this one and this one) the proper type safe way to add an ArrayList to a JComboBox is the following:

private DefaultComboBoxModel<YourClass> getComboBoxModel(List<YourClass> yourClassList)
{
    YourClass[] comboBoxModel = yourClassList.toArray(new YourClass[0]);
    return new DefaultComboBoxModel<>(comboBoxModel);
}

In your GUI code you set the entire list into your JComboBox as follows:

DefaultComboBoxModel<YourClass> comboBoxModel = getComboBoxModel(yourClassList);
comboBox.setModel(comboBoxModel);

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