Questions

How to merge specific files from Git branches

I have 2 git branches: 1. branch1 2. branch2 I want to merge `file.py` into `file.py` in and only that file. In essence I just want to work on the `file.py` in but want to take advantage of the `...

26 Oct at 13:48

The static keyword and its various uses in C++

The keyword `static` is one which has several meanings in C++ that I find very confusing and I can never bend my mind around how its actually supposed to work. From what I understand there is `static`...

20 Jun at 09:12

Getting all file names from a folder using C#

I wanted to know if it is possible to get all the names of text files in a certain folder. For example, I have a folder with the name Maps, and I would like to get the names of all the text files in...

16 May at 20:58

Reverse engineering from an APK file to a project

I accidently erased my project from [Eclipse](http://en.wikipedia.org/wiki/Eclipse_%28software%29), and all I have left is the [APK](http://en.wikipedia.org/wiki/APK_%28file_format%29) file which I tr...

24 Aug at 10:20

Utilizing multi core for tar+gzip/bzip compression/decompression

I normally compress using `tar zcvf` and decompress using `tar zxvf` (using gzip due to habit). I've recently gotten a quad core CPU with hyperthreading, so I have 8 logical cores, and I notice that...

11 May at 07:1

Update just one gem with bundler

I use bundler to manage dependencies in my rails app, and I have a gem hosted in a git repository included as followed: ``` gem 'gem-name', :git => 'path/to/my/gem.git' ``` To update this gem, I ex...

1 Aug at 18:41

Semi-transparent color layer over background-image?

I have a DIV and I would like to put a pattern as background. This pattern is gray. So to make it a little more nice, I would like to put a light transparent color "layer" over. Below is what I tried ...

Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools > Fix Project Properties

Did anybody have similar problem with this, I import android project and I get errors like ``` [2011-10-03 17:20:09 - Screen] Android requires compiler compliance level 5.0 or 6.0. Found '1.7' inst...

25 Mar at 17:48

Use of Application.DoEvents()

Can `Application.DoEvents()` be used in C#? Is this function a way to allow the GUI to catch up with the rest of the app, in much the same way that VB6's `DoEvents` does?

25 May at 16:1

Abstract methods in Python

I am having trouble in using inheritance with Python. While the concept seems too easy for me in Java yet up till now I have been unable to understand in Python which is surprising to me at least. I ...

23 Aug at 12:32

Compare two List<T> objects for equality, ignoring order

Yet another list-comparing question. ``` List<MyType> list1; List<MyType> list2; ``` I need to check that they both have the same elements, regardless of their position within the list. Each objec...

7 Jan at 16:56

How to find if div with specific id exists in jQuery?

I’ve got a function that appends a `<div>` to an element on click. The function gets the text of the clicked element and assigns it to a variable called `name`. That variable is then used as the `<div...

5 Sep at 13:8

#pragma pack effect

I was wondering if someone could explain to me what the `#pragma pack` preprocessor statement does, and more importantly, why one would want to use it. I checked out the [MSDN page](https://learn.mic...

22 Aug at 10:5

How to determine if a decimal/double is an integer?

How do I tell if a decimal or double value is an integer? For example: ``` decimal d = 5.0; // Would be true decimal f = 5.5; // Would be false ``` or ``` double d = 5.0; // Would be true double...

15 Nov at 22:25

What is the theoretical maximum number of open TCP connections that a modern Linux box can have

Assuming infinite performance from hardware, can a Linux box support >65536 open TCP connections? I understand that the number of ephemeral ports (<65536) limits the number of connections from one lo...

31 Jan at 17:16

How to float 3 divs side by side using CSS?

I know how to make 2 divs float side by side, simply float one to the left and the other to the right. But how to do this with 3 divs or should I just use tables for this purpose?

18 Mar at 16:59

Remove warning messages in PHP

I have some PHP code. When I run it, a warning message appears. How can I remove/suppress/ignore these warning messages?

5 Feb at 16:3

What are database normal forms and can you give examples?

> In relational database design, there is a concept of database normalization or simply normalization, which is a process of organizing columns (attributes) and tables (relations) to reduce data redun...

Scanning Java annotations at runtime

How do I search the whole classpath for an annotated class? I'm doing a library and I want to allow the users to annotate their classes, so when the Web application starts I need to scan the whole cla...

26 Jul at 15:43

What are good grep tools for Windows?

Any recommendations on [grep](http://en.wikipedia.org/wiki/Grep) tools for Windows? Ideally ones that could leverage 64-bit OS. I'm aware of [Cygwin](http://www.cygwin.com/), of course, and have also...

26 Jul at 17:47

What is the purpose of class methods?

I'm teaching myself Python and my most recent lesson was that [Python is not Java](http://dirtsimple.org/2004/12/python-is-not-java.html), and so I've just spent a while turning all my Class methods i...

26 Sep at 19:34

How do I Set Background image in Flutter?

I am trying to set a background image for the home page. I am getting the image place from start of the screen and filling the width but not the height. Am I missing something in my code? Are there im...

19 Jun at 11:26

How to center the elements in ConstraintLayout

I am using `ConstraintLayout` in my application to make applications layout. I am trying to a create a screen wheren one `EditText` and `Button` should be in center and `Button` should be below of `Ed...

Git: Set local user.name and user.email different for each repo

I'm currently working on 2 projects, which expect that I configure my local username and email with different data when I push to them. For that I'm updating my config all the time like: `git config -...

21 Jun at 12:40

How to iterate over columns of pandas dataframe to run regression

I have this code using Pandas in Python: ``` all_data = {} for ticker in ['FIUIX', 'FSAIX', 'FSAVX', 'FSTMX']: all_data[ticker] = web.get_data_yahoo(ticker, '1/1/2010', '1/1/2015') prices = DataF...

10 Jan at 00:51