there is a volatile attribute in the netty internal logging framework InternalLoggerFactory that defaultFactory, does not understand why the volatile keyword is added, and if it is to implement a singleton, why not add the getDefaultFactory method in th...
public class TestClass { int i = 0; volatile boolean tmpvo = false; public void one() { i = 1; tmpvo = true; } public void two() { if(tmpvo) { int j = i; ...... } } } suppose that after the one () metho...
for unprotected multithreads, it is uncertain when some data is modified in one thread and when it is submitted to main memory, and the values used by other threads are not necessarily up-to-date. in the case of volatile modification, it is guaranteed t...
problem description: the api.xx.com interface can only be accessed through the ip of 40.70.230.110ip 3499, and the api.xx.com is not hung on the 40.70.230.110api.xx.com 3499. attempted 1 api.xx.com cannot be accessed locally without a vpn agent (...
problem description if you want to log in to a web site, you do not need to log in directly after jumping to the nodebb community through the web site. the environmental background of the problems and what methods you have tried try to log in to S...
<div id="main"> <div id="inner">inner box< div> <img src="image.png" alt=""> < div> css *{ margin:0; padding:0; } -sharpmain{ margin:0 auto; width:600px; heigh...
follow the code typed in the book, but report an error. Here is to change the date string into an object for fill_between operation. But failed all the time. Ask for advice. The * file is in csv format, and only the data from the first three fields ar...
is there a non-secret refund function in omnipay-alipay? if so, where did the document turn around and couldn t find it ...