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Builder Pattern in Effective Java
I have recently started to read Effective Java by Joshua Bloch. I found the idea of the Builder pattern [Item 2 in the book] really interesting. I tried to implement it in my project but there were compilation errors. Following is in essence what I was trying to do:
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Android and setting width and height programmatically in dp units
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The formula is in the docs. For further reading, go to section 3 of developer.android.com/guide/practices/…
– SK9
Mar 20 '11 at 1:49
35
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Fast Bitmap Blur For Android SDK
...y get on Android. Google claims to be "typically 2-3x faster than a multithreaded C implementation and often 10x+ faster than a Java implementation". Renderscript is really sophisticated (using the fastest processing device (GPU, ISP, etc.), etc.) and there is also the v8 support library for it maki...
converting CSV/XLS to JSON? [closed]
... it took only a couple hours including researching tools.
Apache POI will read the Excel binary.
http://poi.apache.org/
JSONObject will build the JSON
After that it's just a matter of iterating through the rows in the Excel data and building a JSON structure. Here's some pseudo code for the basic...
Syntax for a single-line Bash infinite while loop
...dition has an exit status which is not zero.
Using a while loop:
while read i; do foo; sleep 2; done < /dev/urandom
Using a for loop:
for ((;;)); do foo; sleep 2; done
Another way using until:
until [ ]; do foo; sleep 2; done
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JSON Stringify changes time of date because of UTC
... code non-timezone safe -- you should be correcting the timezone when your read the date back in.
– olliej
Sep 28 '09 at 17:51
4
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Random strings in Python
... broad e.g., os.urandom(length) answers the original question and @sth had read OP's mind incorrectly.
– jfs
Jun 8 '16 at 11:19
2
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Get a UTC timestamp [duplicate]
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Date.getTime() already returns the UTC timestamp. There is no need to apply an offset. See @james-mcmahon's answer below.
– wizzard
Feb 28 '13 at 22:53
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YYYY-MM-DD format date in shell script
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The man pages for date reads: %F full date; same as %Y-%m-%d, so this is just a more compact notation for the accepted answer.
– Håvard Geithus
Nov 16 '15 at 20:42
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MongoDB drop every database
...o shell you can simply do
dropDatabases()
From the docs:
Mongo will read the .mongorc.js file from the home directory of the user invoking mongo. In the file, users can define variables, customize the mongo shell prompt, or update information that they would like updated every time they launc...