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Extract digits from a string in Java
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Using Google Guava:
CharMatcher.inRange('0','9').retainFrom("123-456-789")
UPDATE:
Using Precomputed CharMatcher can further improve performance
CharMatcher ASCII_DIGITS=CharMatcher.inRange('0','9').precomputed();
ASCII_DIGI...
What is the best open-source java charting library? (other than jfreechart) [closed]
... enables developers to programmatically create the charts available in the Google Chart API through a straightforward and intuitive Java API.
Disclaimer: I wrote charts4j. We will be doing another major release in the next few weeks.
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Command-line Tool to find Java Heap Size and Memory Used (Linux)?
... Yet, it is a very helpful answer for me coming to this page via google search on how to find the global heap size.
– Johan
Jan 25 '18 at 13:53
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AngularJS ng-if with multiple conditions
...HTML5 was not written with Angular in mind. Instead the brilliant guys at google wrote Angular to instead - take advantage of the spec and thus writing an Angular Expression with "&" is very normal. Sure, I prefer to not put business rules in the View, just like when I do Razor View pages in...
IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
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It's October 2017, and Google makes Android Support Library with the new things call Lifecycle component. It provides some new idea for this 'Can not perform this action after onSaveInstanceState' problem.
In short:
Use lifecycle component to de...
Absolute vs relative URLs
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<title>Example</title>
<link href='//fonts.googleapis.com/css?family=Lato:300italic,700italic,300,700' rel='stylesheet' type='text/css'>
<link href="/style/style.css" rel="stylesheet" type="text/css" media="screen"></style>
</head>
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Why is there no GIL in the Java Virtual Machine? Why does Python need one so bad?
... The Unladen Swallow team has given up on removing the GIL: code.google.com/p/unladen-swallow/wiki/…
– Seun Osewa
Mar 20 '10 at 20:25
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Troubleshooting “The use statement with non-compound name … has no effect”
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Since this question appears as the first result on Google for this error I will state how I fixed it.
Basically if you have a framework, say like Yii2 you will be used to having to do declare classes like:
use Yii;
use yii\db\WhatEver;
class AwesomeNewClass extends WhatEve...
Non-CRUD operations in a RESTful service
... calls that seem to make more sense in RPC operation style. Example is the google maps api to find directions between two places. Looks like this:
http://maps.googleapis.com/maps/api/directions/json?origin=Jakkur&destination=Hebbal
They could have called it "findDirections" (verb) and treated i...
Replace Fragment inside a ViewPager
...2012, repacing fragments in a ViewPager seems to have become a lot easier. Google released Android 4.2 with support for nested fragments, and it's also supported in the new Android Support Library v11 so this will work all the way back to 1.6
It's very similiar to the normal way of replacing a frag...