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Java synchronized method lock on object, or method?
...Integer instead:
import java.util.concurrent.atomic.AtomicInteger;
class X {
AtomicInteger a;
AtomicInteger b;
public void addA(){
a.incrementAndGet();
}
public void addB(){
b.incrementAndGet();
}
}
...
How to tell git to use the correct identity (name and email) for a given project?
...
git config user.email "bob@example.com"
Doing that one inside a repo will set the configuration on THAT repo, and not globally.
Seems like that's pretty much what you're after, unless I'm misreading you.
...
What is the meaning of “… …” token? i.e. double ellipsis operator on parameter pack
...psis is similar in meaning to _ArgTypes..., ..., i.e. a variadic template expansion followed by a C-style varargs list.
Here's a test supporting that theory… I think we have a new winner for worst pseudo-operator ever.
Edit: This does appear to be conformant. §8.3.5/3 describes one way to form ...
Changing the case of a string in Eclipse
...
By default, the hotkeys:
CTRL+SHIFT+Y changes to lowercase.
CTRL+SHIFT+X changes to UPPERCASE.
Or, on a Mac:
⌘+⇧+Y changes to lowercase.
⌘+⇧+X changes to UPPERCASE.
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Example images for code and mark-up Q&As [closed]
...
Here are some example images for common use, mostly from existing answers on SO.
Icons
Simple Geometric shapes generated using Java as originally seen in this answer. It includes a Java based interface that defines the URLs and makes t...
常用Linux命令详解（持续更新） - 更多技术 - 清泛网 - 专注C/C++及内核技术
常用Linux命令详解（持续更新）对我们日常工作中经常会用到的一些Linux命令进行一下详解。logout,shutdown,reboot,useradd,passwd,ls,ll,cd,mkdir,vi,cp,rm,mv,chmod,chown,find,grep,tail,tar,gzip,fdisk,kill,netstat等。一、注销，关机，重启，新建用户、删除...
Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
Linux反编译全攻略一个简单的linuxcrackme的逆向前言最不喜欢的就是写破解教程，酒后一时冲动，老夫卿发少年狂，许下将写一篇linux平台逆向的文章的诺言，作...一个简单的linux crackme的逆向
前言
最不喜欢的就是写破解教...
What new capabilities do user-defined literals add to C++?
...er-defined literals which will allow the introduction of new literal syntax based on existing literals ( int , hex , string , float ) so that any type will be able to have a literal presentation.
...
SQL statement to select all rows from previous day
...hat accepts three parameters (msdn.microsoft.com/en-us/library/ms189794.aspx) the question you link to is for MySql, which I guess works differently as you have found. You will find that SQL is not completely interchangeable, there are many differences like this between different vendors, especially...
How to convert integer timestamp to Python datetime
...
datetime.datetime.fromtimestamp() is correct, except you are probably having timestamp in miliseconds (like in JavaScript), but fromtimestamp() expects Unix timestamp, in seconds.
Do it like that:
>>> import datetime
>>> your_timestamp = 1331856000000
...