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AWS Difference between a snapshot and AMI
...t of a non ebs backed instance, but you can create a AMI (system image) of one.
Generally I use EBS snapshots as backup solutions for a database volume and I use an AMI to save instance configuration
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Why is Multiple Inheritance not allowed in Java or C#?
...NET and Java designers did not allow multiple inheritance because they reasoned that adding MI added too much complexity to the languages while providing too little benefit.
For a more fun and in-depth read, there are some articles available on the web with interviews of some of the language design...
TreeMap sort by value
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polygenelubricants answer is almost perfect. It has one important bug though. It will not handle map entries where the values are the same.
This code:...
Map<String, Integer> nonSortedMap = new HashMap<String, Integer>();
nonSortedMap.put("ape", 1);
nonSortedMap....
Animate scrollTop not working in firefox
...en animating on a single supported object would be nice, but there's not a one line solution. In the meantime, here's a way to use a promise to do a single callback per execution.
$('html, body')
.animate({ scrollTop: 100 })
.promise()
.then(function(){
// callback code here
...
Tracing XML request/responses with JAX-WS
...e XML for a webservice published with JAX-WS reference implementation (the one included in JDK 1.5 and better) ?
Being able to do that via code is what I need to do.
Just having it logged to a file by clever logging configurations would be nice but enough.
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What's better at freeing memory with PHP: unset() or $var = null
I realise the second one avoids the overhead of a function call ( update , is actually a language construct), but it would be interesting to know if one is better than the other. I have been using unset() for most of my coding, but I've recently looked through a few respectable classes found off t...
Purpose of Trigraph sequences in C++?
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As I recall, at least one compiler I've used (g++ ?) requires an explicit command line option before trigraph and or digraph is translated, otherwise a warning is given but no substitution.
– KTC
Aug 5 '09 at...
Android equivalent to NSNotificationCenter
In the process of porting an iPhone application over to android, I am looking for the best way to communicate within the app. Intents seem to be the way to go, is this the best (only) option? NSUserDefaults seems much lighter weight than Intents do in both performance and coding.
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Adding local .aar files to Gradle build using “flatDirs” is not working
...d import your .AAR.
Then in your project build.gradle (not the top level one, the one under 'app') add the following (in the dependencies section):
dependencies {
compile project(':Name-Of-Your-Project')
}
Note Name-Of-Your-Project should match the name of the folder that was added after yo...
How do I check if an element is really visible with JavaScript? [duplicate]
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For the point 2.
I see that no one has suggested to use document.elementFromPoint(x,y), to me it is the fastest way to test if an element is nested or hidden by another. You can pass the offsets of the targetted element to the function.
Here's PPK test pa...