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What is the difference between Strategy design pattern and State design pattern?
...ing different things based on the
state, while leaving the caller relieved from the burden of
accommodating every possible state. So for example you might have a
getStatus() method that will return different statuses based on the
state of the object, but the caller of the method doesn't have to be
c...
Android 4.3 menu item showAsAction=“always” ignored
I'm using the new v7 appcompat library available starting from Android 4.3 (API level 18).
12 Answers
...
How to get subarray from array?
...have var ar = [1, 2, 3, 4, 5] and want some function getSubarray(array, fromIndex, toIndex) , that result of call getSubarray(ar, 1, 3) is new array [2, 3, 4] .
...
Install a Python package into a different directory using pip?
...add d:\somewhere\other\than\the\default to PYTHONPATH to actually use them from that location.
-t, --target <dir>
Install packages into <dir>. By default this will not replace existing files/folders in <dir>.
Use --upgrade to replace existing packages in <dir> with ne...
Change old commit message on Git
...
I did that, and then commits from other branches show up in my branch
– Reza
Jul 20 at 19:18
...
How do I rename a local Git branch?
...develop in the same branch instead of deleting it and create the new one.
From my experience, to rename a local and remote branch in Git you should do the following steps.
Quoting from Multiple States - Rename a local and remote branch in
git
1. Rename your local branch
If you are on the b...
Creating folders inside a GitHub repository without using Git
...fter searching a lot I find out that it is possible to create a new folder from the web interface, but it would require you to have at least one file within the folder when creating it.
When using the normal way of creating new files through the web interface, you can type in the folder into the fi...
npm install error - MSB3428: Could not load the Visual C++ component “VCBuild.exe”
...
Try this from cmd line as Administrator
optional part, if you need to use a proxy:
set HTTP_PROXY=http://login:password@your-proxy-host:your-proxy-port
set HTTPS_PROXY=http://login:password@your-proxy-host:your-proxy-port
run this...
What does “program to interfaces, not implementations” mean?
...r of a program at run-time. It also helps you to write far better programs from the maintenance point of view.
Here's a basic example for you.
public enum Language
{
English, German, Spanish
}
public class SpeakerFactory
{
public static ISpeaker CreateSpeaker(Language language)
{
...
entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
... careful when you set entity properties.
// Be sure that all objects came from the same context
context.Groups.Add(group);
context.SaveChanges();
Using only one EntityContext can solve this. Refer to other answers for other solutions.
...