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Change Circle color of radio button
...ny I got it working for > 21 already.. I am looking for answers specifically for < 21
– Lenin Raj Rajasekaran
Nov 20 '15 at 8:40
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Extracting the last n characters from a string in R
... @mdsumner points out. Consider:
x <- c("some text in a string", "I really need to learn how to count")
substrRight(x, 6)
[1] "string" " count"
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What's the difference between a 302 and a 307 redirect?
...(RFC 2616):
Note: RFC 1945 and RFC 2068 specify that the client is not allowed to
change the method on the redirected
request. However, most existing user
agent implementations treat 302 as if
it were a 303 response, performing a
GET on the Location field-value
regardless of the ori...
How to construct a relative path in Java from two absolute paths (or URLs)?
...le roundabout, but why not use URI? It has a relativize method which does all the necessary checks for you.
String path = "/var/data/stuff/xyz.dat";
String base = "/var/data";
String relative = new File(base).toURI().relativize(new File(path).toURI()).getPath();
// relative == "stuff/xyz.dat"
Pl...
How to step back in Eclipse debugger?
..., so it may not work depending on the sort of method you're in.
Another really cool tool that actually does let you step back and forward in time is the Omniscient Debugger. It works by instrumenting classes as they're loaded in the classloader, so it can record everything that your code does. It...
How to hide status bar in Android
...l be popped out and at the same time the user can be able to scroll to see all remaining views(ex: compose,subject, send button) in that screen. Similarly in my app I have one activity in that I am having some widgets or views.
Suppose if the user clicks on Edittext which is in my Activity then ...
Is there a regular expression to detect a valid regular expression?
...itutions and translations. s/<this part>/.../
It is not theoretically possible to match all valid regex grammars with a regex.
It is possible if the regex engine supports recursion, such as PCRE, but that can't really be called regular expressions any more.
Indeed, a "recursive regu...
Named Branches vs Multiple Repositories
...ository. Your working copy will always reflect a single changeset, the so-called working copy parent changeset. Check this with:
% hg parents
Let's say that it reports [y]. You can see the heads with
% hg heads
and this will report [y] and [d]. If you want to update your repository to a clean ...
How/When does Execute Shell mark a build as failure in Jenkins?
...e said:
If you have a shell script that does "checkout, build, deploy" all by itself, then why are you using Jenkins? You are foregoing all the features of Jenkins that make it what it is. You might as well have a cron or an SVN post-commit hook call the script directly. Jenkins performing the S...
SparseArray vs HashMap
...pe.
There are some variants for different key/value types, even though not all of them are publicly available.
Benefits are:
Allocation-free
No boxing
Drawbacks:
Generally slower, not indicated for large collections
They won't work in a non-Android project
HashMap can be replaced by the fol...