< H2 > the first case < H2 > package com.btmans.thread; public class TestSync implements Runnable{ int b = 100; public synchronized void m1() throws Exception{ b = 1000; Thread.sleep(5000); System.out.println("b=&q...
topic description while learning the knowledge of multithreading, the result of the following code is not the same as expected. I can t see what the problem is. Please take a look at it . sources of topics and their own ideas what I think is that ...
in the following figure, while thread An executes the synchronized method of obj, thread B can execute other non-synchronized methods of obj I have read several blogs on the Internet, and most of them say yes. But as I understand it, when thread A ...
recently read "Java concurrent programming practice, " in Section 4.4.1, there is an example: suppose we need a thread-safe List, that needs to provide us with an atomic "put-if-absent " operation. And two implementations are provided: A non-thread...
Object obj=new Object(); Object obj2=obj; synchronized(obj){} synchronized(obj2){} what if this is the case? Object obj=new Object(); synchronized(obj){} obj=new Object(); synchronized(obj){} ...
use vue+element to do a simple function, that is, a table is to click the add button, enter a piece of data, and then add the input data to a column of the table. As a result, there is a problem. Go directly to the code: . handleAdd() { this.dial...
recently, the company is going to write WeChat Mini Programs, which is all written in the grammar of the original sound Mini Program. I recently heard that mpvue, is very popular, and decided to learn. I can want to write the original WeChat Mini Program...
when running vagrant up , the following error occurs, indicating that the package kernel-devel-4.18.7-1.el7.elrepo.x86_64 is missing and cannot be found in http: mirror.centos.org cent., so where can I download it? ...
the packages imported by go are all online, and it will not be found. What should I do if I can t find them? you can t manually go down to the local area one by one. That s a lot. ...
set the route, the route that jumps in router-link will have this effect, but there are some interfaces I want to judge the situation to jump, so I use this.$router.push, but there is no such state after the page jumps. What is the problem? .router-l...