给定以下代码框架，是否可以确定属性foo实际上是String类型？publicclassTestIntrospection{publicstaticclassSuperBean{privateTfoo;publicTgetFoo(){returnfoo;}publicvoidsetFoo(Tfoo){this.foo=foo;}}publicstaticclassSubBeanextendsSuperBean{}publicstaticvoidmain(String[]args)throwsIntrospectionException{BeanInfobeanInfo=Introspe