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What is the difference between is_a and instanceof?
..., and since is_a was deprecated at the exact same time as the operator was introduced it became impossible to write code for both PHP 4 and 5 without throwing an E_STRICT around. You can't even do if (version_compare(PHP_VERSION, 5) >= 0) { /* use instanceof */ } else { /* use is_a */ } because i...
ExecutorService, how to wait for all tasks to finish
...;Future<Object>> answers = es.invokeAll(todo);
As others have pointed out, you could use the timeout version of invokeAll() if appropriate. In this example, answers is going to contain a bunch of Futures which will return nulls (see definition of Executors.callable(). Probably what you ...
How big can a user agent string get?
...nts (normalize it)
In your related tables, store an Foreign Key value to point back to the UserAgent auto-increment primary key field
Store the actual UserAgent string in a TEXT field and care not about the length
Have another UNIQUE BINARY(32) (or 64, or 128 depending on your hash length) and hash ...
How to add Web API to an existing ASP.NET MVC 4 Web Application project?
...t;controller>/5 : url to use => api/vs/5
public string Get(int id)
{
return (id + 1).ToString();
}
}
}
Rebuild and test
Build a simple html page
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
&l...
Animate a custom Dialog
...ndroid SDK.
Then when I create the Dialog in my activities onCreateDialog(int id) method I do the following.
Dialog dialog = new Dialog(this, R.style.PauseDialog);
// Setting the title and layout for the dialog
dialog.setTitle(R.string.pause_menu_label);
dialog.setContentView(R.layout.pause_menu)...
LogCat message: The Google Play services resources were not found. Check your project configuration
...
maybe you can ignore, but I keep getting into a code that doesn't exist, each time I choose to debug the app.
– android developer
Jun 19 '14 at 17:13
...
How do I find a “gap” in running counter with SQL?
...have a table with 2 million rows that has gaps, so I will need to slice it into smaller pieces and run some SQL on it). I suppose I could run one query to find the start of a gap, then another to find the end of a gap, and them "merge sort" the two sequences.
– Hamish Grubijan
...
Why does AuthorizeAttribute redirect to the login page for authentication and authorization failures
...ates that the server understood the request but refuses to authorize it.
Interestingly enough, at the time ASP.NET MVC 1 was released the behavior of AuthorizeAttribute was correct. Now, the behavior is incorrect - the HTTP/1.1 specification was fixed.
Rather than attempt to change ASP.NET's logi...
Getting thread id of current method call
Is there a way to print out the current thread id on which the current method is executing on?
6 Answers
...
When to use “ON UPDATE CASCADE”
...something that doesn't exist in the parent table (and you have referential integrity), you should get a foreign key error.
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