如何从另一个类的JComboBox中获取内容

// 另一个类的代码
public class OtherClass {
    private JComboBox<String> comboBox;

    public OtherClass(JComboBox<String> comboBox) {
        this.comboBox = comboBox;
    }

    public String getSelectedValue() {
        String selectedValue = (String) comboBox.getSelectedItem();
        return selectedValue;
    }
}

// 使用示例
public class MainClass {
    public static void main(String[] args) {
        JComboBox<String> comboBox = new JComboBox<>();
        comboBox.addItem("Option 1");
        comboBox.addItem("Option 2");
        comboBox.addItem("Option 3");

        OtherClass otherClass = new OtherClass(comboBox);
        String selectedValue = otherClass.getSelectedValue();
        System.out.println("Selected value: " + selectedValue);
    }
}