[Reprinted] Supplementary explanation on "static methods cannot call non-static methods"

I found an article to verify my previous ideas (the static method must call the non-static method by passing object parameters, because the non-static method corresponds to the object instance) Http://hi.baidu.com/danghj/blog/item/1f96d1eac9771cd6d539c986.html Call non-static methods in static methods We all know that,Non-static non-static methods cannot be called in static methods.To be precise, the non-static method cannot be called directly. However, you can pass an object reference to the static method and call the non-static method of the object. In fact, this fact is often applied, so we do not pay attention to it: in the main function (static method), we often create a class instance, and then use its drinking variables to call its non-static method. // Staticmethodtest. Java // A ststic method cannot call a non-static method, but we can transfer a object reference, which include a non-static metho to the static method, thus, wo can call that non-static method in a indirect way. public class staticmethodtest { Void nonstaticmethod (){ System. Out. println ("this is a non-sataic method .");} Static void staticmethod (staticmethodtest s ){ System. Out. println ("this is a static method ."); S. nonstaticmethod (); } Public static void main (string [] ARGs) {staticmethodtest sobj = new staticmethodtest (); Staticmethod (sobj); // you can directly call the static method in the main function. } }