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Android: Background Image Size (in Pixel) which Support All Devices
... in all devices. For understanding multiple supporting screens you have to read
http://developer.android.com/guide/practices/screens_support.html
xxxhdpi: 1280x1920 px
xxhdpi: 960x1600 px
xhdpi: 640x960 px
hdpi: 480x800 px
mdpi: 320x480 px
ldpi: 240x320 px
...
How to generate all permutations of a list?
...know this post is old but I'm writing this for the benefit of everyone who reads it now. Also now, the best way would be to use itertools.permutations() as pointed out by many.
– Jagtesh Chadha
May 2 '11 at 12:40
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How to find duplicates in 2 columns not 1
...duplicate records and the IGNORE deletes the existing duplicates.
You can read more about eh ALTER IGNORE here: http://mediakey.dk/~cc/mysql-remove-duplicate-entries/
Update: I was informed by @Inquisitive that this may fail in versions of MySql> 5.5 :
It fails On MySQL > 5.5 and on Inno...
How can I override the OnBeforeUnload dialog and replace it with my own?
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Just FYI anyone reading this^ Chrome is deprecating synchronous AJAX calls in unbeforeunload
– morganwebdev
Apr 22 '19 at 21:09
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Mechanisms for tracking DB schema changes [closed]
...sqldump].
Create bookkeeping table (called _meta) if it doesn't exist.
Read current VERSION from _meta table. Assume 0 if not found.
For all .sql files numbered higher than VERSION, execute them in order
If one of the files produced an error: roll back to the backup
Otherwise, update the v...
Spring .properties file: get element as an Array
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+1, just what I needed. Unfortunately reading comma-separated values into a List<String> in the same fashion doesn't seem to work (the list will have just one element).
– Jonik
May 29 '13 at 8:36
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Counting the occurrences / frequency of array elements
... the reduce answer. I was about to submit such an answer before I saw it already existed. Nevertheless the counts[num] = counts[num] ? counts[num]+1 : 1 answer also works (equivalent to the if(!result[a[i]])result[a[i]]=0 answer, which is more elegant but less easy to read); this answers can be modi...
Feedback on using Google App Engine? [closed]
...ng them same entity group may not be best for frequent update purposes....
read this http://blog.notdot.net/2009/9/Distributed-Transactions-on-App-Engine
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Run/install/debug Android applications over Wi-Fi?
...ed or other Wi-Fi device)".
This information may prove valuable to future readers, but I rolled-back to the original version that had received 178 upvotes.
On some device you can do the same thing even if you do not have an USB cable:
Enable ADB over network in developer setting
It should sho...
Calculate size of Object in Java [duplicate]
... linked has a great example, which I'll repost here, but you should have already looked at from his comment:
import java.lang.instrument.Instrumentation;
public class ObjectSizeFetcher {
private static Instrumentation instrumentation;
public static void premain(String args, Instrumentation...