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Java Swing - 如何在JOptionPane中显示JComboBox

joptionpane 【joptionpane】
我们想知道如何在JOptionPane中显示JComboBox。
代码展示 运行结果 
import javax.swing.JComboBox;
import javax.swing.JOptionPane;

public class Main {

  public static void main(String[] args) throws Exception {
    Object[] options = { "Option 1", "Option 2", "Option 3", "Option 4",
        "Option 5", "Option 6", "Option 7", "None of the above" };
    JComboBox optionList = new JComboBox(options);
    optionList.setSelectedIndex(7);
    JOptionPane.showMessageDialog(null, optionList, "Title",
        JOptionPane.QUESTION_MESSAGE);
  }
}