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how to view the contents of a .pem certificate
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This should work for any x509 .pem file provided you have openssl installed.
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Map to String in Java
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Use Object#toString().
String string = map.toString();
That's after all also what System.out.println(object) does under the hoods. The format for maps is described in AbstractMap#toString().
Returns a string representation of this map. The string representation consists of a list of key-v...
How do I make my string comparison case insensitive?
... Just be aware that the two solutions are not necessarily identical for all locales. String#equalsIgnoreCase is not using locale specific casing rules, while String#toLowerCase and #toUpperCase do.
– jarnbjo
Feb 8 '10 at 9:48
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Measuring code execution time
...ngs that @soner-gonul mentioned - but, the usage is clutter free and hides all the boilerplate code. Very helpful when you want to use it very frequently. It also uses Common.Logging so that you can integrate with your preferred logging provider.
– Chai
Jan 20 ...
How do I find out if first character of a string is a number?
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Character.isDigit(string.charAt(0))
Note that this will allow any Unicode digit, not just 0-9. You might prefer:
char c = string.charAt(0);
isDigit = (c >= '0' && c <= '9');
Or the slower regex solutions:
s.substring(0, 1).matches("\\d")
// or the equivalent
s.su...
Pushing read-only GUI properties back into ViewModel
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I wonder if you could do some trickery to automatically attach the properties, without needing Observe. But this looks like a fine solution. Thanks!
– Joe White
Jul 5 '09 at 12:58
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Adding a build configuration in Xcode
...roject as in the screenshot, YES, I selected Info tab THEN my project) but all those options are still greyed out?
– Can Poyrazoğlu
Sep 5 '16 at 7:09
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Bash script absolute path with OS X
...ee simple steps are going to solve this and many other OS X issues:
Install Homebrew
brew install coreutils
grealpath .
(3) may be changed to just realpath, see (2) output
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Converting string into datetime
...time is the main routine for parsing strings into datetimes. It can handle all sorts of formats, with the format determined by a format string you give it:
from datetime import datetime
datetime_object = datetime.strptime('Jun 1 2005 1:33PM', '%b %d %Y %I:%M%p')
The resulting datetime object is...
Padding characters in printf
...amic technique:
printf -v pad '%*s' "$padlimit"
You can do the printing all on one line if you prefer:
printf '%s%*.*s%s\n' "$string1" 0 $((padlength - ${#string1} - ${#string2} )) "$pad" "$string2"
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