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Error type 3 Error: Activity class {} does not exist
..., that I successfully imported to Android Studio 0.4.0. It works perfectly if I don't change anything in manifest. However, when I want to change the launcher activity and run, it fails with this error:
...
What is global::?
...define types. For example:
class foo
{
class System
{
}
}
If you were to use System where it would be locally scoped in the foo class, you could use:
global::System.Console.WriteLine("foobar");
to access the global namespace.
Example
using System;
class Foo
{
public void b...
How to set default values in Rails?
...angerous word in Ruby. There's usually more than one way to do anything. If you know you'll always want that default value for that column on that table, setting them in a DB migration file is the easiest way:
class SetDefault < ActiveRecord::Migration
def self.up
change_column :people, ...
Inserting multiple rows in a single SQL query? [duplicate]
...tion and answer are old, but I like to mention that there is a functional difference between using the method mentioned in the question and in this answer. The first executes triggers X amount of times with 1 record in the inserted table. The second executes triggers 1 time with x amount of records ...
Find unique rows in numpy.array
...
Note that if you want unique rows ignoring order of values in the row, you can sort the original array in the columns direct first: original_array.sort(axis=1)
– mangecoeur
Mar 2 at 11:59
...
Remove duplicated rows
...
@user1897691 mark it as correct then ;) watch this and if you like that, check twotorials.com
– Anthony Damico
Dec 20 '12 at 7:25
3
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Java - No enclosing instance of type Foo is accessible
...ch (by definition) is associated with a particular instance of Hello (even if it never uses or refers to it), which means it's an error to say new Thing(); without having a particular Hello instance in scope.
If you declare it as a static class instead, then it's a "nested" class, which doesn't ne...
Read input from console in Ruby?
...ernel.gets tries to read the params found in ARGV and only asks to console if not ARGV found. To force to read from console even if ARGV is not empty use STDIN.gets
share
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improve this answer
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How can I group data with an Angular filter?
...
UPDATE: jsbin Remember the basic requirements to use angular.filter, specifically note you must add it to your module's dependencies:
(1) You can install angular-filter using 4 different methods:
clone & build this repository
via Bower: by running $ bower install angular-filter f...
nginx missing sites-available directory
...convention to imitate Debian's apache setup. You could create it yourself if you wanted to emulate the same setup.
Create /etc/nginx/sites-available and /etc/nginx/sites-enabled and then edit the http block inside /etc/nginx/nginx.conf and add this line
include /etc/nginx/sites-enabled/*;
Of co...