如何传递字符串并将其作为类调用

String className = "com.example.MyClass";
String methodName = "myMethod";

try {
    Class<?> clazz = Class.forName(className);
    Object obj = clazz.newInstance();
    Method method = clazz.getMethod(methodName);
    method.invoke(obj);
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | NoSuchMethodException | InvocationTargetException e) {
    e.printStackTrace();
}

code = """
class MyClass:
    def myMethod(self):
        print("Hello, World!")

obj = MyClass()
obj.myMethod()
"""

eval(code)