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What does it mean to “program to an interface”?
...ce, but beyond that I finally understood their use as a language construct by thinking of them as a means of classifying common traits or behaviors that were exhibited by potentially many non-related classes of objects.
For example -- say you have a SIM game and have the following classes:
class H...
Why did my Git repo enter a detached HEAD state?
... 9fc9555312 Merge branch 'cc/shared-index-permbits'
it cannot detached by mistake a remote tracking branch
See:
C:\Users\vonc\arepo>git checkout origin/master
Note: switching to 'origin/master'.
You are in 'detached HEAD' state. You can look around, make experimental
changes and commit th...
Is there a CSS selector by class prefix?
...us-" occurring directly after a space character. Class names are separated by whitespace per the HTML spec, hence the significant space character. This checks any other classes after the first if multiple classes are specified, and adds a bonus of checking the first class in case the attribute value...
Regex not operator
...e very end of your regex!). Then after I matched that, I end the lookahead by using an unescaped ).
– Joachim Sauer
Sep 6 '11 at 9:13
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Hashing a string with Sha256
...de encoding, used in the Windows world for historical reasons but not used by anyone else). http://msdn.microsoft.com/en-us/library/system.text.encoding.unicode.aspx
If you inspect your bytes array, you'll see that every second byte is 0x00 (because of the double-wide encoding).
You should be usin...
How to place div side by side
...all day to find a solution and this answer solved it! I have 4 panels side by side with the 3rd and 4th panels sometimes not having anything in them. They all live in a containing div with a border around them. The whole float:left on the first div situation left me with a div going past the border ...
How can I get the count of milliseconds since midnight for the current?
... @MarkusMikkolainen: Nope, System.currentTimeMillis() isn't affected by time zones.
– Jon Skeet
Aug 2 '12 at 20:47
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Java Delegates?
...
Not really, no.
You may be able to achieve the same effect by using reflection to get Method objects you can then invoke, and the other way is to create an interface with a single 'invoke' or 'execute' method, and then instantiate them to call the method your interested in (i.e. usin...
How do I edit an existing tag message in git?
...f -m "<new message>"
This will create a new tag with the same name (by overwriting the original).
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What are the obj and bin folders (created by Visual Studio) used for?
...ntermediate object files and other transient data files that are generated by the compiler or build system during a build. The bin directory is the directory that final output binaries (and any dependencies or other deployable files) will be written to.
You can change the actual directories used fo...