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How to escape @ characters in Subversion managed file names?
... allows you to target a specific revision of that file. For example, "svn info test.txt@1234" will give information about test.txt as it existed in revision 1234.
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Do you (really) write exception safe code? [closed]
...even be sure, that it is?
Writing exception-safe code is like writing bug-free code.
You can't be 100% sure your code is exception safe. But then, you strive for it, using well-known patterns, and avoiding well-known anti-patterns.
Do you know and/or actually use alternatives that work?
There are...
How can we match a^n b^n with Java regex?
... we anticipate having a more complicated pattern, let's use x modifier for free-spacing so we can make our regex more readable.
Building on our previous PHP snippet, we now have the following pattern:
$r2 = '/ ^ a+ (?= (b+) ) /x';
# │ └──┘ │
# │ 1 │
# ...
ImageUtil 扩展：图像工具扩展，提供图像处理和变换功能 · App Inventor 2 中文网
...《服务协议》 关注公众号，精彩不错过！ #free_v { border:none; position:fixed; top:40%; left:5px; width:200px; height:500px; display: none;}@media screen and (max-width: 700px) { #free_v { top:200%; }}
Bootstrap 3 Navbar with Logo
...><img src="http://disputebills.com/site/uploads/2015/10/dispute.png" alt="Dispute Bills"></a>
</div>
<div id="navbar" class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home&l...
Detect application heap size in Android
... your app currently uses:
long usedMemory=runtime.totalMemory() - runtime.freeMemory();
Getting how much of the heap your app can now use (available memory) :
long availableMemory=maxMemory-usedMemory;
And, to format each of them nicely, you can use:
String formattedMemorySize=Formatter.forma...
What's the difference between equal?, eql?, ===, and ==?
...t returns true when there is no match and false if there is a match.
More info is available at this blog post.
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File Hash 扩展：文件哈希计算和 Base64 编码文件，sha256、sha512 哈希 ·...
...《服务协议》 关注公众号，精彩不错过！ #free_v { border:none; position:fixed; top:40%; left:5px; width:200px; height:500px; display: none;}@media screen and (max-width: 700px) { #free_v { top:200%; }}
Google Maps: Auto close open InfoWindows?
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There is a close() function for InfoWindows. Just keep track of the last opened window, and call the close function on it when a new window is created.
This demo has the functionality you're looking for. I found it in the Maps API V3 demo gallery.
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LinkedBlockingQueue vs ConcurrentLinkedQueue
...s algorithm by Maged M. Michael and Michael L. Scott for non-blocking lock-free queues.
"Non-blocking" as a term here for a contended resource (our queue) means that regardless of what the platform's scheduler does, like interrupting a thread, or if the thread in question is simply too slow, other ...