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Correctly determine if date string is a valid date in that format
I'm receiving a date string from an API, and it is formatted as yyyy-mm-dd .
16 Answers
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Are there any Java method ordering conventions? [closed]
..., and then all the private ones - that means it's easy to separate the API from the implementation, even when there's no interface involved, if you see what I mean.
Another idea is to group related methods together - this makes it easier to spot seams where you could split your existing large class...
FirstOrDefault: Default value other than null
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From the documentation for FirstOrDefault
[Returns] default(TSource) if source is empty;
From the documentation for default(T):
the default keyword, which will return null for reference types and zero for numeric va...
How to round an image with Glide library?
...Drawables. They are transitiondrawables and glidedrawables which crossfade from the placeholder to the real image. The RoundedBitmapDrawable cannot handle that.
– Greg Ennis
Apr 22 '16 at 14:31
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Can I get “&&” or “-and” to work in PowerShell?
...is:
(build) -and (run_tests)
It has the same logic, but the output text from the commands is lost. Maybe it is good enough for you, though.
If you're doing this in a script, you will probably be better off separating the statements, like this:
build
if ($?) {
run_tests
}
2019/11/27: The ...
How to create an empty file at the command line in Windows?
...EMptyFile.txt
copy /b NUL EmptyFile.txt
"How to create empty text file from a batch file?" (2008) also points to:
type NUL > EmptyFile.txt
# also
echo. 2>EmptyFile.txt
copy nul file.txt > nul # also in qid's answer below
REM. > empty.file
fsutil file createnew file.cmd 0 # to create...
What's the difference between a Future and a Promise?
...s no no-argument constructor, and both Future and FutureTask are read-only from the outside (the set methods of FutureTask are protected). The value will be set to the result of the computation from the inside.
On the other hand, the result of a promise can be set by "you" (or in fact by anybody) a...
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
... (0==0) and (1==0) predates C99.
there are still good reasons to stay away from C99 and work with C90.
If you're working in a mixed C and C++ project, and don't want C99, define the lower-case true, false and bool instead.
#ifndef __cplusplus
typedef int bool;
#define true (0==0)
#define false (!...
POST JSON fails with 415 Unsupported media type, Spring 3 mvc
...eader is used by @RequestBody to determine what format the data being sent from the client in the request is. The accept header is used by @ResponseBody to determine what format to sent the data back to the client in the response. That's why you need both headers.
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Proper REST response for empty table?
...ect to leave a redirection.
Why not 204 (No Content) ?
Here's an excerpt from the description of the 204 status code by w3c
The server has fulfilled the request but does not need to return an entity-body, and might want to return updated metainformation.
While this may seem reasonable in thi...