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How to JSON serialize sets?
...
JSON notation has only a handful of native datatypes (objects, arrays, strings, numbers, booleans, and null), so anything serialized in JSON needs to be expressed as one of these types.
As shown in the json module docs, this conversion can be done automatically by a JSONEncoder and JSONDecoder,...
Why Java needs Serializable interface?
...e annoyance when dealing with pure java, like some flaws in collection and string processing in standard library. Happily there's Kryo, but it is dependency and one needs to find it first. This is how built-in serialization should have been done.
– dmitry
Aug 7...
How can I launch multiple instances of MonoDevelop on the Mac?
...Using the shell to enter the command as others have described to launch an extra instance is fine, but I prefer having an icon on the dock that I can just click.
It's easy to do:
Open AppleScript Editor and enter the following:
do shell script "open -n /Applications/MonoDevelop.app/"
Save with a...
How to make a countdown timer in Android?
....Date;
public class MainActivity extends AppCompatActivity {
private String EVENT_DATE_TIME = "2020-12-31 10:30:00";
private String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
private LinearLayout linear_layout_1, linear_layout_2;
private TextView tv_days, tv_hour, tv_minute, tv_second;
...
Django “xxxxxx Object” display customization in admin action sidebar
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The string you're seeing is coming from __unicode__ method, as others have mentioned. But the thing is that admin saves string representation of an object when it creates log event, therefore if you add __unicode__ implementation...
How do you use the Immediate Window in Visual Studio?
...s say this is what your class looks like:
private class Foo
{
public string GetMessage()
{
return "hello";
}
}
If the object already exists in memory and it’s in scope, then you can call it in the Immediate Window as long as it has been instantiated before your current brea...
Dynamic instantiation from string name of a class in dynamically imported module?
In python, I have to instantiate certain class, knowing its name in a string, but this class 'lives' in a dynamically imported module. An example follows:
...
Can I replace groups in Java regex?
...(...). I'm assuming you wanted to replace the first group with the literal string "number" and the second group with the value of the first group.
Pattern p = Pattern.compile("(\\d)(.*)(\\d)");
String input = "6 example input 4";
Matcher m = p.matcher(input);
if (m.find()) {
// replace first nu...
Why is Git better than Subversion?
... ways to copy the repo). With Git, that's the default mode anyway. It's an extra command though (git commit commits locally, whereas git push origin master pushes the master branch to the remote named "origin").
As said above: Git adds complexity. Two modes of creating repositories, checkout vs. cl...
When should I use GET or POST method? What's the difference between them?
... PHP confuses the concepts a bit. A POST request gets input from the query string and through the request body. A GET request just gets input from the query string. So a POST request is a superset of a GET request; you can use $_GET in a POST request, and it may even make sense to have parameters wi...