Questions

How to add a new line of text to an existing file in Java?

I would like to append a new line to an existing file without erasing the current information of that file. In short, here is the methodology that I am using the current time: ``` import java.io.Buf...

5 Dec at 18:35

Limitations of SQL Server Express

My hosting provider (Rackspace) is offering a fully managed dedicated server with SQL Server Web version () installed. My company handles web development, and has about 20+ clients using ASP.Net + SQL...

4 Mar at 16:34

Rank function in MySQL

I need to find out rank of customers. Here I am adding the corresponding ANSI standard SQL query for my requirement. Please help me to convert it to MySQL . ``` SELECT RANK() OVER (PARTITION BY Gende...

18 Sep at 20:5

Check Redis server version

I've found in [Redis site](http://redis.io/topics/quickstart) this command: > $ redis-server and that should give me (according to the site): ``` [28550] 01 Aug 19:29:28 # Warning: no config file spe...

17 Feb at 23:10

standard_init_linux.go:178: exec user process caused "exec format error"

docker started throwing this error: > standard_init_linux.go:178: exec user process caused "exec format error" whenever I run a specific docker container with CMD or ENTRYPOINT, with no regard to an...

27 Feb at 20:8

No input file specified

I'm running [Anchor CMS](http://anchorcms.com/) and I just upgraded to version 0.8. When I try and run the installer I get a 'No input file specified' error. I believe it's more than likely a .htacces...

How to jump to top of browser page

I'm writing a modal popup and I need the browser to jump to the top of the screen when the open modal button is pressed. Is there a way to scroll the browser to the top using jQuery?

10 Nov at 17:22

How do you convert epoch time in C#?

How do you convert Unix [epoch time](http://en.wikipedia.org/wiki/Unix_time) into real time in C#? (Epoch beginning 1/1/1970)

8 Mar at 08:43

GitHub: Permission denied (publickey). fatal: The remote end hung up unexpectedly

I have followed these instructions below to upload a project. Global setup: ``` Download and install Git git config --global user.name "Your Name" git config --global user.email tirenga@gmail.c...

24 Oct at 15:26

Connection timeout for SQL server

Can I increase the timeout by modifying the connection string in the `web.config`?

17 Sep at 09:7

How to read one single line of csv data in Python?

There is a lot of examples of reading csv data using python, like this one: ``` import csv with open('some.csv', newline='') as f: reader = csv.reader(f) for row in reader: print(row) ``` I...

27 Aug at 00:21

How to fix linker error "cannot find crt1.o"?

I have a virtual Debian system which I use to develop. Today I wanted to try llvm/clang. After installing clang I can't compile my old c-projects (with gcc). This is the error: ``` /usr/bin/ld: cannot...

24 Sep at 18:5

Resolve promises one after another (i.e. in sequence)?

Consider the following code that reads an array of files in a serial/sequential manner. `readFiles` returns a promise, which is resolved only once all files have been read in sequence. ``` var readFil...

How to set "style=display:none;" using jQuery's attr method?

Following is the form with id `msform` that I want to apply style="display:none" attribute to. ``` <form id="msform" style="display:none;"> </form> ``` Also the check should be performed before add...

8 Jan at 17:42

Sum all the elements java arraylist

If I had: `ArrayList<Double> m = new ArrayList<Double>();` with the double values ​​inside, how should I do to add up all the ArrayList elements? ``` public double incassoMargherita() { double sum =...

30 Sep at 06:38

Parsing JSON from XmlHttpRequest.responseJSON

I'm trying to parse a bit.ly JSON response in javascript. I get the JSON via XmlHttpRequest. ``` var req = new XMLHttpRequest; req.overrideMimeType("application/json"); req.open('GET', BITLY_CRE...

8 Nov at 11:58

Can you nest html forms?

Is it possible to nest html forms like this ``` <form name="mainForm"> <form name="subForm"> </form> </form> ``` so that both forms work? My friend is having problems with this, a part of the `...

22 Oct at 06:48

How to create own dynamic type or dynamic object in C#?

There is, for example, the [ViewBag](http://msdn.microsoft.com/en-us/library/system.web.mvc.controllerbase.viewbag%28v=vs.98%29.aspx) property of `ControllerBase` class and we can dynamically get/set ...

29 Mar at 08:45

How do I run a batch file from my Java Application?

In my Java application, I want to run a batch file that calls "`scons -Q implicit-deps-changed build\file_load_type export\file_load_type`" It seems that I can't even get my batch file to execute. I'...

7 Aug at 22:48

Can the :not() pseudo-class have multiple arguments?

I'm trying to select `input` elements of all `type`s except `radio` and `checkbox`. Many people have shown that you can put multiple arguments in `:not`, but using `type` doesn't seem to work anyway ...

26 Aug at 10:35

How to select a record and update it, with a single queryset in Django?

How do I run an `update` and `select` statements on the same `queryset` rather than having to do two queries: - one to select the object - and one to update the object The equivalent in SQL would be...

Finding Variable Type in JavaScript

In Java, you can use `instanceOf` or `getClass()` on a variable to find out its type. How do I find out a variable's type in JavaScript which isn't strongly-typed? For example, how do I know if the ...

16 Dec at 00:19

How to combine multiple inline style objects?

In React you can clearly create an object and assign it as an inline style. i.e.. mentioned below. ``` var divStyle = { color: 'white', backgroundImage: 'url(' + imgUrl + ')', WebkitTransition...

17 Oct at 16:20

How to map and remove nil values in Ruby

I have a `map` which either changes a value or sets it to nil. I then want to remove the nil entries from the list. The list doesn't need to be kept. This is what I currently have: ``` # A simple ex...

15 Dec at 21:50

how to remove time from datetime

The field DATE in the database has the following format: ``` 2012-11-12 00:00:00 ``` I would like to remove the time from the date and return the date like this: ``` 11/12/2012 ```

11 Jan at 14:12