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Best way to convert an ArrayList to a string
...:
ArrayList<String> list = new ArrayList<String>();
list.add("one");
list.add("two");
list.add("three");
String listString = "";
for (String s : list)
{
listString += s + "\t";
}
System.out.println(listString);
In fact, a string concatenation is going to be just fine, as the ja...
What is the purpose of “return await” in C#?
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There is one sneaky case when return in normal method and return await in async method behave differently: when combined with using (or, more generally, any return await in a try block).
Consider these two versions of a method:
Task...
When to use Amazon Cloudfront or S3
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Amazon S3 is designed for large-capacity, low-cost file storage in one specific geographical region.* The storage and bandwidth costs are quite low.
Amazon CloudFront is a Content Delivery Network (CDN) which proxies and caches web data at edge locations as close to users as possible.
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Convert SQLITE SQL dump file to POSTGRESQL
...mp to PostgreSQL. Even though this post has an accepted answer (and a good one at that +1), I think adding this is important.
I started looking into the solutions here and realized that I was looking for a more automated method. I looked up the wiki docs:
https://wiki.postgresql.org/wiki/Converting_...
How many characters can UTF-8 encode?
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UTF-8 does not use one byte all the time, it's 1 to 4 bytes.
The first 128 characters (US-ASCII) need one byte.
The next 1,920 characters need two bytes to encode. This covers the remainder of almost all Latin alphabets, and also Greek...
must appear in the GROUP BY clause or be used in an aggregate function
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@Sebas It can be done without joining on MAX (see answer by @ypercube, there is also another solution in my answer) but not the way you do it. Check expected output.
– zero323
Nov 1 '13 at 9:08
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How to define an enumerated type (enum) in C?
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Declaring an enum variable is done like this:
enum strategy {RANDOM, IMMEDIATE, SEARCH};
enum strategy my_strategy = IMMEDIATE;
However, you can use a typedef to shorten the variable declarations, like so:
typedef enum {RANDOM, IMMEDIATE, SEARCH} strat...
How to mock an import
... so that the B import is an ImportError again? I tried sys.modules['B'] = None but it doesn't seem to work.
– audiodude
Aug 20 '19 at 17:50
4
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C: differences between char pointer and array [duplicate]
...current scope's stack space, but that references memory elsewhere (in this one, "now is the time" is stored elsewhere in memory, commonly a string table).
Also, note that because the data belonging to the second definition (the explicit pointer) is not stored in the current scope's stack space, it ...
^M at the end of every line in vim
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One easy way to strip out the DOS line endings is to use the ff option:
:set ff=unix
:wq
Now your file is back to the good-old-Unix-way.
If you want to add the DOS line-endings (to keep a printer happy, or transfer files ...