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Batch files - number of command line arguments
Just converting some shell scripts into batch files and there is one thing I can't seem to find...and that is a simple count of the number of command line arguments.
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Can we instantiate an abstract class?
... compile both your classes. Suppose you put those classes in two different files:
My.java:
abstract class My {
public void myMethod() {
System.out.print("Abstract");
}
}
Poly.java:
class Poly extends My {
public static void main(String a[]) {
My m = new My() {};
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Disable ActiveRecord for Rails 4
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For existing applications:
1. Remove database adapter gems from your Gemfile (mysql2, sqlite3, etc.)
2. Change your config/application.rb
Remove require 'rails/all line and require frameworks (among those available in your rails version, the list varies, do not just copy) you want to use, for e...
How to enable cross-origin resource sharing (CORS) in the express.js framework on node.js
....js that will support cross-domain scripting, while still providing static files from a public directory. I'm using the express.js and am not really sure how to allow cross-domain scripting ( Access-Control-Allow-Origin: * ).
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Why is try {…} finally {…} good; try {…} catch{} bad?
...sed along for someone else to handle. If I have an application that gets a file name from users then reads the file, and my file reader gets an exception opening the file, it should pass them up (or consume the exception and throw a new one) so that the application can say, hey - file didn't open, l...
Find all storage devices attached to a Linux machine [closed]
...devices and partitions that the system recognizes. You can then try using file -s <device> to determine what kind of filesystem is present on the partition, if any.
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Fatal error: Maximum execution time of 300 seconds exceeded
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add it at the very top of your php file
– Tules
Oct 6 '11 at 21:24
2
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SQL Server: Database stuck in “Restoring” state
...zard in SQL Server Management Studio. This way you can select the specific file locations, the overwrite option, and the WITH Recovery option.
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Is there a way to 'uniq' by column?
I have a .csv file like this:
8 Answers
8
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How to remove .html from URL?
... Jon's answer would be constructive. The following:
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
checks that if the specified file or directory respectively doesn't exist, then the rewrite rule proceeds:
RewriteRule ^(.*)\.html$ /$1 [L,R=301]
But what does that mean?...