如何动态创建类文件？

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

public static Object createInstance(String className) {
    try {
        // 加载类
        Class<?> cls = Class.forName(className);

        // 获取类的默认构造函数
        Constructor<?> constructor = cls.getDeclaredConstructor();

        // 设置构造函数为可访问的（如果它是私有的）
        constructor.setAccessible(true);

        // 使用构造函数创建类的实例
        return constructor.newInstance();
    } catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException | InstantiationException | InvocationTargetException e) {
        e.printStackTrace();
    }
    return null;
}

public static void main(String[] args) {
    String className = "com.example.MyClass";
    Object instance = createInstance(className);
    System.out.println("Instance of " + className + " created: " + instance);
}