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Difference between java.io.PrintWriter and java.io.BufferedWriter?
...s (and where long-term reliability isn't an issue).
I'm not sure why the "extra formatting abilities" and "don't swallow exceptions" aspects are bundled into the same class - formatting is obviously useful in many places where you don't want exceptions to be swallowed. It would be nice to see Buffe...
Using braces with dynamic variable names in PHP
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Overview
In PHP, you can just put an extra $ in front of a variable to make it a dynamic variable :
$$variableName = $value;
While I wouldn't recommend it, you could even chain this behavior :
$$$$$$$$DoNotTryThisAtHomeKids = $value;
You can but are not forced...
Add new row to dataframe, at specific row-index, not appended?
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Answers with benchmarks should have some extra reputation applied automatically IMO. Thanks!
– Alex
Jun 20 '19 at 10:42
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How do I test if a string is empty in Objective-C?
How do I test if an NSString is empty in Objective-C?
30 Answers
30
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Writing a Python list of lists to a csv file
... With Python 3 - open('output.csv', 'w', newline=''). I get an extra line if I omit the newline parameter. docs.python.org/3/library/csv.html#csv.writer
– Spas
Jul 2 '15 at 15:50
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How do I parse JSON in Android? [duplicate]
...ed for GSON or anything like that.
Get your JSON:
Assume you have a json string
String result = "{\"someKey\":\"someValue\"}";
Create a JSONObject:
JSONObject jObject = new JSONObject(result);
If your json string is an array, e.g.:
String result = "[{\"someKey\":\"someValue\"}]"
then you ...
Inserting a Python datetime.datetime object into MySQL
...t rather than a DateTime.
If that doesn't work, then converting that to a string should work:
now = datetime.datetime(2009,5,5)
str_now = now.date().isoformat()
cursor.execute('INSERT INTO table (name, id, datecolumn) VALUES (%s,%s,%s)', ('name',4,str_now))
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Installing rmagick on Ubuntu
....2 sudo apt-get install libmagickwand-dev libmagickcore-dev libmagickcore4-extra libgraphviz-dev libgvc5 worked for me.
graphicsmagick-libmagick-dev-compat installed but didn't include the header files so rmagick wouldn't compile.
Please note, you need to remove graphicsmagick-libmagick-dev-compat...
How do you get the “object reference” of an object in java when toString() and hashCode() have been
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This is how I solved it:
Integer.toHexString(System.identityHashCode(object));
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Is there any simple way to find out unused strings in Android project?
I have a huge Android project with many strings declared in strings.xml . I wanted to remove unused strings in strings.xml .
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