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What is the difference between ? and Object in Java generics?
...Eclipse seems to be giving me an option to choose between a type of Object and a type of '?'.
6 Answers
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Get the current git hash in a Python script
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The git describe command is a good way of creating a human-presentable "version number" of the code. From the examples in the documentation:
With something like git.git current tree, I get:
[torvalds@g5 git]$ git describe parent
v1.0.4-14-g24147...
CSS Printing: Avoiding cut-in-half DIVs between pages?
...ing a plug-in for a piece of software that takes a big collection of items and pops them into HTML in a WebView in Cocoa (which uses WebKit as its renderer, so basically you can assume this HTML file is being opened in Safari).
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String formatting named parameters?
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In Python 2.6+ and Python 3, you might choose to use the newer string formatting method.
print('<a href="{0}">{0}</a>'.format(my_url))
which saves you from repeating the argument, or
print('<a href="{url}">{url}</a&...
instantiate a class from a variable in PHP?
... sort of thing you'll see wrapped up in a Factory pattern.
See Namespaces and dynamic language features for further details.
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What is NSLayoutConstraint “UIView-Encapsulated-Layout-Height” and how should I go about forcing it
I have a UITableView running under iOS 8 and I'm using automatic cell heights from constraints in a storyboard.
17 Answer...
Correct format specifier to print pointer or address?
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The simplest answer, assuming you don't mind the vagaries and variations in format between different platforms, is the standard %p notation.
The C99 standard (ISO/IEC 9899:1999) says in §7.19.6.1 ¶8:
p The argument shall be a pointer to void. The value of the pointer is
con...
Python-equivalent of short-form “if” in C++ [duplicate]
...ython 2.5+), a 1-to-1 equivalent of your version might be:
a = (b == True and "123" or "456" )
... which in python should be shortened to:
a = b is True and "123" or "456"
... or if you simply want to test the truthfulness of b's value in general...
a = b and "123" or "456"
? : can literall...
php Replacing multiple spaces with a single space [duplicate]
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Use preg_replace() and instead of [ \t\n\r] use \s:
$output = preg_replace('!\s+!', ' ', $input);
From Regular Expression Basic Syntax Reference:
\d, \w and \s
Shorthand character classes matching
digits, word characters (letters,...
Get boolean from database using Android and SQLite
How can I obtain the value of a boolean field in an SQLite database on Android?
10 Answers
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