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How to override toString() properly in Java?
... "not finding Kid constructor #2" even though it is there and I would even do something else and it doesn't work.
Ok that was a lot so here is my code:
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Recommended way to save uploaded files in a servlet application
...available after refreshing the page:
Changes in the IDE's project folder does not immediately get reflected in the server's work folder. There's kind of a background job in the IDE which takes care that the server's work folder get synced with last updates (this is in IDE terms called "publishing"...
What is an “unwrapped value” in Swift?
...l.
This would not work:
var cantBeNil : Int = 4
cantBeNil = nil // can't do this
To get the value from your variable if it is optional, you have to unwrap it. This just means putting an exclamation point at the end.
var canBeNil : Int? = 4
println(canBeNil!)
Your code should look like this:
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CommandError: You must set settings.ALLOWED_HOSTS if DEBUG is False
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Do grep ALLOWED_HOSTS . -ri in your project's head folder to find the correct file. It's settings.py in this case, but grepping is always good advice.
– Harald Nordgren
Apr 14 '16 at 11:...
How to create our own Listener interface in android?
...verride
public void callback(View view, String result) {
// do your stuff here
}
}
In your custom class, invoke the interface when needed:
MyButton.java:
public class MyButton {
MyListener ml;
// constructor
MyButton(MyListener ml) {
//Setting the listener...
Javascript switch vs. if…else if…else
...t ways different JS engines function. Quote: Since most JavaScript engines don’t have such optimizations, performance of the switch statement is mixed.
– Jasper
May 17 '13 at 17:23
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ASP.NET MVC: Custom Validation by DataAnnotation
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This is a bit late, but does anyone know if there is a different setting that you have to "turn on" in order to allow custom data annotations? I know about adding a namespace for unobstrusive js on the web.config file, but anywhere else?
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How to 'minify' Javascript code
JQuery has two versions for download, one is Production (19KB, Minified and Gzipped) , and the other is Development (120KB, Uncompressed Code) .
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How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?
....sql
Now you can release the lock, even if the dump hasn't ended yet. To do it, perform the following command in the MySQL client:
UNLOCK TABLES;
Now copy the dump file to the slave using scp or your preferred tool.
At the slave:
Open a connection to mysql and type:
STOP SLAVE;
Load master...
Is there a git-merge --dry-run option?
...ANCH
To examine the staged changes:
$ git diff --cached
And you can undo the merge, even if it is a fast-forward merge:
$ git merge --abort
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