Converting double to string
I am not sure it is me or what but I am having a problem converting a double to string. here is my code: ``` double total = 44; String total2 = Double.toString(total); ``` Am i doing something wro...
pull out p-values and r-squared from a linear regression
How do you pull out the p-value (for the significance of the coefficient of the single explanatory variable being non-zero) and R-squared value from a simple linear regression model? For example... `...
- Modified
- 7 Apr at 21:7
How to print register values in GDB?
How do I print the value of `%eax` and `%ebp`? ``` (gdb) p $eax $1 = void ```
- Modified
- 14 Jun at 23:30
Java associative-array
How can I create and fetch associative arrays in Java like I can in PHP? For example: ``` $arr[0]['name'] = 'demo'; $arr[0]['fname'] = 'fdemo'; $arr[1]['name'] = 'test'; $arr[1]['fname'] = 'fname'; ...
- Modified
- 3 Jul at 11:28
Why would one use nested classes in C++?
Can someone please point me towards some nice resources for understanding and using nested classes? I have some material like Programming Principles and things like this [IBM Knowledge Center - Nested...
- Modified
- 20 Apr at 12:36
How to simulate a button click using code?
How can I trigger a button click event using code in Android? I want to trigger the button click programmatically when some other event occurs. Same Problem I am Facing ``` public void onDateSelect...
What are the advantages of using getters and setters instead of functions or simply public fields in PHP?
I'm not a PHP developer, so I'm wondering what the advantages and disadvantages are in PHP to using explicit getter/setters, in a pure OOP style, with private fields (the way I like): ``` class MyClas...
- Modified
- 5 Sep at 11:18
Is it possible to do a sparse checkout without checking out the whole repository first?
I'm working with a repository with a very large number of files that takes hours to checkout. I'm looking into the possibility of whether Git would work well with this kind of repository now that it s...
- Modified
- 23 Aug at 16:18
Which selector do I need to select an option by its text?
I need to check if a `<select>` has an option whose text is equal to a specific value. For example, if there's an `<option value="123">abc</option>`, I would be looking for "abc". Is there a selecto...
- Modified
- 8 Jul at 06:21
How can I get an element's ID value with JavaScript?
Is there another way to get an DOM element's ID? ``` element.getAttribute('id') ```
- Modified
- 9 Nov at 17:55
Generate the ERD for an existing database
I have a PostgreSQL database. I want to generate ERD from that database. Are there any built-in tools to do it or maybe some third-party tools?
- Modified
- 23 Dec at 02:9
Determine the line of code that causes a segmentation fault?
How does one determine where the mistake is in the code that causes a [segmentation fault](https://stackoverflow.com/questions/2346806/what-is-a-segmentation-fault)? Can my compiler (`gcc`) show the ...
- Modified
- 26 Jan at 22:43
Get value from SimpleXMLElement Object
I have something like this: ``` $url = "http://ws.geonames.org/findNearbyPostalCodes?country=pl&placename="; $url .= rawurlencode($city[$i]); $xml = simplexml_load_file($url); echo $url."\n"; $cityC...
How to add ID property to Html.BeginForm() in asp.net mvc?
I want to validate my form using jquery but it doesn't have an `ID` property as of now how to add it to the form in asp.net mvc? I am using this... ``` <% using (Html.BeginForm()) {%> ``` and my jq...
- Modified
- 18 May at 04:44
Maximum packet size for a TCP connection
What is the maximum packet size for a TCP connection or how can I get the maximum packet size?
- Modified
- 11 Dec at 09:4
What is an MvcHtmlString and when should I use it?
The [documentation](http://msdn.microsoft.com/en-us/library/system.web.mvc.mvchtmlstring%28VS.100%29.aspx) for `MvcHtmlString` is not terribly enlightening: > Represents an HTML-encoded string that s...
- Modified
- 19 Feb at 00:49
How to select records from last 24 hours using SQL?
I am looking for a `where` clause that can be used to retrieve records for the last 24 hours?
What is the difference between a JavaBean and a POJO?
I'm not sure about the difference. I'm using Hibernate and, in some books, they use JavaBean and POJO as an interchangeable term. I want to know if there is a difference, not just in the Hibernate con...
- Modified
- 6 Mar at 14:26
Struct inheritance in C++
Can a `struct` be inherited in C++?
- Modified
- 15 Dec at 19:42
PHP Pass variable to next page
It seems pretty simple but I can't find a good way to do it. Say in the first page I create a variable ``` $myVariable = "Some text"; ``` And the form's action for that page is "Page2.php". So in ...
ORDER BY the IN value list
I have a simple SQL query in PostgreSQL 8.3 that grabs a bunch of comments. I provide a list of values to the `IN` construct in the `WHERE` clause: ``` SELECT * FROM comments WHERE (comments.id IN (...
- Modified
- 5 Mar at 00:26
Ruby: How to turn a hash into HTTP parameters?
That is pretty easy with a plain hash like ``` {:a => "a", :b => "b"} ``` which would translate into ``` "a=a&b=b" ``` But what do you do with something more complex like ``` {:a => "a", :b ...
- Modified
- 15 Mar at 11:33
How do I see the extensions loaded by PHP?
It's got to be somewhere in the phpinfo() dump, but I just don't know where. Is it supposed to be under the "Additional Modules" section? Somewhere else? I'm trying to figure out why some extension...
- Modified
- 6 Jan at 16:35
How do I set the selected item in a comboBox to match my string using C#?
I have a string "test1" and my comboBox contains `test1`, `test2`, and `test3`. How do I set the selected item to "test1"? That is, how do I match my string to one of the comboBox items? I was thinki...
Is there a WinSCP equivalent for Linux?
I love [WinSCP](https://en.wikipedia.org/wiki/WinSCP) for Windows. What is the best equivalent software for Linux? I tried to use sshfs to mount the remote file system on my local machine, but it is ...