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How to make a Java thread wait for another thread's output?
...examples is preferably the object that you need to manipulate concurrently from each thread, or you could create a separate Object for that purpose (I would not recommend making the methods themselves synchronized):
private final Object lock = new Object();
//now use lock in your synchronized bloc...
Where is HttpContent.ReadAsAsync?
...a = await response.Content.ReadAsStringAsync();
//use JavaScriptSerializer from System.Web.Script.Serialization
JavaScriptSerializer JSserializer = new JavaScriptSerializer();
//deserialize to your class
products = JSserializer.Deserialize<List<Product>>(data);
...
Redirect to an external URL from controller action in Spring MVC
...
You can use the RedirectView. Copied from the JavaDoc:
View that redirects to an absolute, context relative, or current request relative URL
Example:
@RequestMapping("/to-be-redirected")
public RedirectView localRedirect() {
RedirectView redirectView ...
What are some uses of template template parameters?
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Here is a simple example taken from 'Modern C++ Design - Generic Programming and Design Patterns Applied' by Andrei Alexandrescu:
He uses a classes with template template parameters in order to implement the policy pattern:
// Library code
template <t...
How to export all collections in MongoDB?
...atabase_name> -o <directory_backup>
And to "restore/import" it (from directory_backup/dump/):
mongorestore -d <database_name> <directory_backup>
This way, you don't need to deal with all collections individually. Just specify the database.
Note that I would recommend again...
git remote prune – didn't show as many pruned branches as I expected
From the man page:
1 Answer
1
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Rails 3.1 and Image Assets
... stuff that's driving me crazy as a dude trying to learn Rails having come from other web development frameworks.
– jn29098
Aug 4 '12 at 12:36
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Is it more efficient to copy a vector by reserving and copying, or by creating and swapping? [duplic
...or);
This is even simpler than using std::copy to walk the entire vector from start to finish to std::back_insert them into the new vector.
That being said, your .swap() one is not a copy, instead it swaps the two vectors. You would modify the original to not contain anything anymore! Which is no...
How do I copy a file in Python?
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shutil has many methods you can use. One of which is:
from shutil import copyfile
copyfile(src, dst)
Copy the contents of the file named src to a file named dst.
The destination location must be writable; otherwise, an IOError exception will be raised.
If dst already exists, ...
Random strings in Python
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Generating strings from (for example) lowercase characters:
import random, string
def randomword(length):
letters = string.ascii_lowercase
return ''.join(random.choice(letters) for i in range(length))
Results:
>>> randomword...