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How to save an image locally using Python whose URL address I already know?
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with urlretrieve I just get a 1KB file with a dict and 404 error text inside.Why? If I enter url into my browser I can get the picture
– Yebach
Oct 29 '14 at 12:20
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Create the perfect JPA entity [closed]
I've been working with JPA (implementation Hibernate) for some time now and each time I need to create entities I find myself struggling with issues as AccessType, immutable properties, equals/hashCode, ... .
So I decided to try and find out the general best practice for each issue and write this ...
How to map with index in Ruby?
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IMO this is simpler and better-reading in 1.8.7+: arr.map.with_index{ |o,i| [o,i+2] }
– Phrogz
Jan 15 '11 at 2:43
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Is there a way to instantiate a class by name in Java?
...ng its name. Is there a way to do it in Java? I will have the package name and class name and I need to be able to create an object having that particular name.
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How to test an Internet connection with bash?
... very nice... but of course assumes the box has wget. embedded devices and whatnot probably won't. ;)
– Eric Sebasta
Jun 8 '15 at 19:03
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What are best practices for validating email addresses on iOS 2.0
...his modification of DHValidation:
- (BOOL) validateEmail: (NSString *) candidate {
NSString *emailRegex =
@"(?:[a-z0-9!#$%\\&'*+/=?\\^_`{|}~-]+(?:\\.[a-z0-9!#$%\\&'*+/=?\\^_`{|}"
@"~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\"
@"x7f]|\\\\[\\x01-\\x09\\x0b\\x0c...
how to make a specific text on TextView BOLD
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Just build your String in HTML and set it:
String sourceString = "<b>" + id + "</b> " + name;
mytextview.setText(Html.fromHtml(sourceString));
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How can I link to a specific glibc version?
...f glibc. When I run this binary on another PC with an older glibc, the command fails saying there's no glibc 2.11...
4 Ans...
PostgreSQL database default location on Linux
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The "directory where postgresql will keep all databases" (and configuration) is called "data directory" and corresponds to what PostgreSQL calls (a little confusingly) a "database cluster", which is not related to distributed computing, it just means a group of databases and related...
Mono - 跨平台 .NET运行环境 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... allows .NET code to interoperate with Apple frameworks such as foundation and appkit. It makes it possible for managed code to call native Objective-C methods, native methods to call managed code, and new Objective-C classes to be defined in managed code. Exceptions are properly marshaled in both d...