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What is Type-safe?
... feature called covariance, this basically means that you can substitute a base type for a child type and not cause an error, for example:
public class Foo : Bar
{
}
Here, I created a new class (Foo) that subclasses Bar. I can now create a method:
void DoSomething(Bar myBar)
And call it us...
Enum String Name from Value
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64
Use this:
string bob = nameof(EnumDisplayStatus.Visible);
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Eclipse JUNO doesn't start
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I had a similar problem but on Win7 - 64. Deleting the .snap file allowed me into Eclipse and then I had to refresh my resource file via File-->Refresh.
The snap file is located: YOUR_PROJECT_DIR/.metadata/.plugins/org.eclipse.core.resources/.snap
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Convert JSON string to dict using Python
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764
json.loads()
import json
d = json.loads(j)
print d['glossary']['title']
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Rails 3 - can't install pg gem
...should work ok. Here's my command line: sudo env ARCHFLAGS="-arch x86_64" gem install pg -- --with-pg-include=/Library/PostgreSQL/9.1/include/ --with-pg-lib=/Library/PostgreSQL/9.1/lib/
– Rod Paddock
Nov 29 '13 at 20:46
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download and install visual studio 2008 [closed]
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I just needed to add 64-bit support to an existing VS2008 installation, and the first link provided in this answer worked for that purpose. I also had to download the VS2008 SP1 installer, and follow the instructions here to complete the feature...
Convert data.frame column to a vector?
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Ari B. FriedmanAri B. Friedman
64.3k3131 gold badges164164 silver badges225225 bronze badges
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android TextView: setting the background color dynamically doesn't work
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64
To set red color:
textView.setBackgroundColor(0xfff00000);
Or
<color name="solid_red">...
Why is Go so slow (compared to Java)?
...these and found them to be mostly OK. I think the results can be used as a base for estimations.
– Agoston Horvath
Apr 7 '16 at 15:11
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“Keep Me Logged In” - the best approach
...logs in, generate a large (128 to 256 bit) random token. Add that to a database table which maps the token to the userid, and then send it to the client in the cookie.
What if the attacker guesses the random token of another user?
Well, let's do some math here. We're generating a 128 bit random t...