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Size-limited queue that holds last N elements in Java
A very simple & quick question on Java libraries: is there a ready-made class that implements a Queue with a fixed maximum size - i.e. it always allows addition of elements, but it will silently remove head elements to accomodate space for newly added elements.
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Can CSS detect the number of children an element has?
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NOTE: This solution will return the children of sets of certain lengths, not the parent element as you have asked. Hopefully, it's still useful.
Andre Luis came up with a method: http://lea.verou.me/2011/01/styling-children-based-on-their-number-with-css3/ Unfortunately, ...
How to revert multiple git commits?
... you have published, because somebody might have based their work on it. If you rewrite (change) history, you would make problems with merging their changes and with updating for them.
So the solution is to create a new commit which reverts changes that you want to get rid of. You can do this usi...
Is there a 'foreach' function in Python 3?
...tion here} {stuff that runs on each iteration} {commands here...} eg: for {set x 1} {$x <= 10} {incr x} {puts $x} you can also add extra checks inside the iteration braces using ';'. To me would make more sense if he came here asking if python had a true 'for' loop
– Francis...
记录一些Mac OS X技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...东西不记录下来就会找不到，于是就有了这篇日志。重启Finder有些设置更改以后需要重启Finder才能生效，最简...用了几个月Mac OS X，发现很多东西不记录下来就会找不到，于是就有了这篇日志。
重启Finder
有些设置更改以后需...
App Inventor 2 字典 vs 列表：同样存数据，性能差了10倍？ - App应用开发 ...
<font size="4"><b>App Inventor 2 字典 vs 列表：同样存数据，性能差了10倍？</b></font><br><br><br>在做 App 开发时，你可能会遇到这样一个场景：要存储一组学生信息，包含姓名、年龄、班级，然后需要快速根据姓名查到对应的班级。用列...
String difference in Bash
I'm trying to find a way to determine the difference between two strings in my script. I could easily do this with diff or comm, but I'm not dealing with files and I'd prefer not to output them to files, do the compare and read it back.
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How do HashTables deal with collisions?
I've heard in my degree classes that a HashTable will place a new entry into the 'next available' bucket if the new Key entry collides with another.
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Notification click: activity already open
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You need to set the launchMode attribute of the Activity you are starting to singleTop. This will cause incoming Intents to be delivered to the existing instance rather than starting a new instance when that Activity is already at the t...
update package.json version automatically
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@DanEsparza This might be a setting thing. npm version patch does not commit anything for me.
– Mordred
Apr 6 '15 at 16:03
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