如何将类型安全的对象强制转换为JComboBox<String>？

import javax.swing.JComboBox;

public class MyComboBox<T> extends JComboBox<T> {
    // 假设MyComboBox已经实现了必要的功能
}

public class Main {
    public static void main(String[] args) {
        MyComboBox<String> myComboBox = new MyComboBox<>();
        // 添加一些字符串项
        myComboBox.addItem("Item 1");
        myComboBox.addItem("Item 2");

        // 强制转换为JComboBox<String>
        JComboBox<String> comboBox = (JComboBox<String>) myComboBox;
        // 现在可以使用comboBox了
    }
}

import javax.swing.JComboBox;

public class MyComboBox<T> extends JComboBox<T> {
    // 假设MyComboBox已经实现了必要的功能
}

public class Main {
    public static <T> JComboBox<String> convertToJComboBox(MyComboBox<T> myComboBox) {
        if (myComboBox.getItemClass().equals(String.class)) {
            return (JComboBox<String>) myComboBox;
        } else {
            throw new ClassCastException("Cannot cast to JComboBox<String>");
        }
    }

    public static void main(String[] args) {
        MyComboBox<String> myComboBox = new MyComboBox<>();
        // 添加一些字符串项
        myComboBox.addItem("Item 1");
        myComboBox.addItem("Item 2");

        // 使用泛型方法进行转换
        JComboBox<String> comboBox = convertToJComboBox(myComboBox);
        // 现在可以使用comboBox了
    }
}

import javax.swing.JComboBox;

public class MyComboBox<T> extends JComboBox<T> {
    // 假设MyComboBox已经实现了必要的功能
}

public class Main {
    public static <T> JComboBox<String> convertToJComboBox(MyComboBox<T> myComboBox) {
        if (myComboBox.getItemClass().equals(String.class)) {
            return (JComboBox<String>) myComboBox;
        } else {
            throw new ClassCastException("Cannot cast to JComboBox<String>");
        }
    }

    public static void main(String[] args) {
        MyComboBox<String> myComboBox = new MyComboBox<>();
        // 添加一些字符串项
        myComboBox.addItem("Item 1");
        myComboBox.addItem("Item 2");

        // 使用泛型方法进行转换
        JComboBox<String> comboBox = convertToJComboBox(myComboBox);
        // 现在可以使用comboBox了
    }
}