我可以访问'Class‘对象的静态变量吗？

public class MyClass {
    public static int myStaticVariable = 10;
}

public class Main {
    public static void main(String[] args) {
        Class<?> myClass = MyClass.class;
        try {
            Field field = myClass.getField("myStaticVariable");
            int value = field.getInt(null);
            System.out.println("原始值：" + value);
            
            // 修改静态变量的值
            field.setInt(null, 20);
            
            value = field.getInt(null);
            System.out.println("修改后的值：" + value);
        } catch (NoSuchFieldException | IllegalAccessException e) {
            e.printStackTrace();
        }
    }
}