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Should I use Java's String.format() if performance is important?
We have to build Strings all the time for log output and so on. Over the JDK versions we have learned when to use StringBuffer (many appends, thread safe) and StringBuilder (many appends, non-thread-safe).
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Where/How to getIntent().getExtras() in an Android Fragment? [duplicate]
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What I tend to do, and I believe this is what Google intended for developers to do too, is to still get the extras from an Intent in an Activity and then pass any extra data to fragments by instantiating them with arguments.
There's actually a...
How do I split a string by a multi-character delimiter in C#?
...y do in fact include the spaces. Splitting on " is " would give you "This" and "a sentence" rather than "This " and " a sentence". Note the subtle spaces at the end of "This" and beginning of "a sentence". Again, this answer is probably what the questioner actually wants, but it's not what he asked ...
How to send only one UDP packet with netcat?
I want to send only one short value in a UDP packet, but running the command
5 Answers
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Error in strings.xml file in Android
... there is an apostrophe (') character in your string. replace it with (\') and it will fix the issue. for example,
//strings.xml
<string name="terms">
Hey Mr. Android, are you stuck? Here, I\'ll clear a path for you.
</string>
Ref:
http://www.mrexcel.com/forum/showthread.php?t=195...
“Use the new keyword if hiding was intended” warning
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Your class has a base class, and this base class also has a property (which is not virtual or abstract) called Events which is being overridden by your class. If you intend to override it put the "new" keyword after the public modifier. E.G.
public new ...
cURL equivalent in Node.js?
...rmation from an HTTP request using Node.js (i.e. call a remote web service and echo the response to the client).
17 Answers...
Writing a Python list of lists to a csv file
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Python's built-in CSV module can handle this easily:
import csv
with open("output.csv", "wb") as f:
writer = csv.writer(f)
writer.writerows(a)
This assumes your list is defined as a, as it is in your question. You can tweak the exact format of the...
MongoDB: How to query for records where field is null or not set?
...not set then:
db.emails.count({sent_at: {$exists: false}})
If its there and null, or not there at all:
db.emails.count({sent_at: null})
Refer here for querying and null
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How do I make JavaScript beep?
...directly in JavaScript. You'll need to embed a short WAV file in the HTML, and then play that via code.
An Example:
<script>
function PlaySound(soundObj) {
var sound = document.getElementById(soundObj);
sound.Play();
}
</script>
<embed src="success.wav" autostart="false" width=...