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Grab a segment of an array in Java without creating a new array on heap
...arrays as the OP wanted (byte[] in his case). All you'll get would be List<byte[]>. And changing byte[] bigArray to Byte[] bigArray might impose a significant memory overhead.
– Dmitry Avtonomov
Apr 2 '14 at 3:43
...
How to add screenshot to READMEs in github repository?
...ded that you have the image in your repo, you can use a relative URL:
If you need to embed an image that's hosted elsewhere, you can use a full URL
GitHub recommend that ...
How can I switch to a tag/branch in hg?
...
hg branch only lists default, but the repo has tags! To list tags, use hg tags
– Hendy Irawan
Jul 7 '14 at 5:39
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Rails create or update magic?
..."Roger").first_or_initialize
user.email = "email@example.com"
user.save
Alternatively, you can use find_or_initialize_by.
user = User.find_or_initialize_by(name: "Roger")
In Rails 3.
user = User.find_or_initialize_by_name("Roger")
user.email = "email@example.com"
user.save
You can use a bloc...
Just disable scroll not hide it?
...also do a slight improvement: if you get the document.documentElement.scrollTop property via javascript just before the layer opening, you could dynamically assign that value as top property of the body element: with this approach the page will stand in its place, no matter if you're on top or if yo...
How do I see if Wi-Fi is connected on Android?
...
}
NOTE: It should be noted (for us n00bies here) that you need to add
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
to your
AndroidManifest.xml for this to work.
NOTE2: public NetworkInfo getNetworkInfo (int networkType) is now deprecated:
This method w...
How can I update the current line in a C# Windows Console App?
... and then you can rewrite it. This should do the trick:
for(int i = 0; i < 100; ++i)
{
Console.Write("\r{0}% ", i);
}
Notice the few spaces after the number to make sure that whatever was there before is erased.
Also notice the use of Write() instead of WriteLine() since you don't want t...
Convert Bitmap to File
...
It has a default path?
– Nathiel Barros
Jun 8 '17 at 9:04
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Class.forName() vs ClassLoader.loadClass() - which to use for dynamic loading? [duplicate]
...this situation, you can see that both calls will yield quite different results!
For more detailed (and authoritative) information on class loading and initialization, check sections 12.2 and 12.4 of the latest (3rd) edition of the Java Language Specification.
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Where does the @Transactional annotation belong?
...at the service bean.
Technically this technique makes use of AspectJ and <context:spring-configured />. Roo uses AspectJ inter-type definitions to separate the entity semantics (transactions and persistence) from the domain object stuff (basically fields and business methods).
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