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Is it good practice to use java.lang.String.intern()?
...s usually quite small; you may run into an OutOfMemoryError with plenty of free heap space.
(from Michael Borgwardt)
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Copy existing project with a new name in Android Studio
... answered Aug 20 '13 at 7:39
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Spring RestTemplate - how to enable full debugging/logging of requests/responses?
...Request(HttpRequest request, byte[] body) throws IOException {
log.info("===========================request begin================================================");
log.debug("URI : {}", request.getURI());
log.debug("Method : {}", request.getMethod());
lo...
How to query as GROUP BY in django?
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Django does not support free group by queries. I learned it in the very bad way. ORM is not designed to support stuff like what you want to do, without using custom SQL. You are limited to:
RAW sql (i.e. MyModel.objects.raw())
cr.execute sentences...
How to merge dictionaries of dictionaries?
... he wants either (he wasn't clear), You end up with 2: {'c': {'z': {'y': {'info1': 'value', 'info2': 'value2'}}}, 'b': {'info1': 'value', 'info2': 'value2'}} for his second example, I'm not sure whether he wants the z and y flattened up or not?
– agf
Aug 26 '11...
Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
...preceded .net, it was necessary for any routine which received a string to free it when it was done with it. Because it was very common for empty strings to be passed into and out of routines, and because attempting to "free" a null pointer was defined as a legitimate do-nothing operation, Microsof...
iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ion {
if (keyboardShown) {
return;
}
NSDictionary *info = [notification userInfo];
NSValue *aValue = [info objectForKey:UIKeyboardFrameBeginUserInfoKey];
CGSize keyboardSize = [aValue CGRectValue].size;
CGRect viewFrame = scrollView.frame;
viewFrame.size...
Can git automatically switch between spaces and tabs?
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Here is the complete solution:
In your repository, add a file .git/info/attributes which contains:
*.py filter=tabspace
Linux/Unix
Now run the commands:
git config --global filter.tabspace.smudge 'unexpand --tabs=4 --first-only'
git config --global filter.tabspace.clean 'expand --tabs=...
StringUtils 字符串工具扩展：强大的文本处理工具集 · 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%; }}
Artificially create a connection timeout error
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To test a connection timeout at the socket level, freeze the nc process with a kill -STOP <pid> (or just CTRL-Z it without putting in background). The system will act as if the server was running, but wait for the server to accept the connection, resulting in a connect...