How can I get current date in Android?
I wrote the following code ``` Date d = new Date(); CharSequence s = DateFormat.format("MMMM d, yyyy ", d.getTime()); ``` I want the current date in string format, like ``` 28-Dec-2011 ``` so that ...
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- 22 Apr at 21:54
How to create a date object from string in javascript
Having this string `30/11/2011`. I want to convert it to date object. Do I need to use : ``` Date d = new Date(2011,11,30); /* months 1..12? */ ``` or ``` Date d = new Date(2011,10,30); /...
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- 15 Feb at 14:14
What is "pom" packaging in maven?
I was given a maven project to compile and get deployed on a tomcat server. I have never used maven before today, but I have been googling quite a bit. It seems like the top level `pom.xml` files in t...
C++ auto keyword. Why is it magic?
From all the material I used to learn C++, `auto` has always been a weird storage duration specifier that didn't serve any purpose. But just recently, I encountered code that used it as a type name i...
Setting background colour of Android layout element
I am trying to, somewhat clone the design of an activity [from a set of slides on Android UI design](https://docs.google.com/present/view?id=0AfYilHnGmJNGZGZwNnZ4dm5fNDdkY3o2M3Bqag&hl=en_GB). However ...
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- 11 Sep at 13:48
Configuring diff tool with .gitconfig
How do I configure Git to use a different tool for diffing with the .gitconfig file? I have this in my .gitconfig: ``` [diff] tool = git-chdiff #also tried /bin/git-chdiff ``` It does not work...
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- 20 Jul at 23:26
Parse JSON String into a Particular Object Prototype in JavaScript
I know how to parse a JSON String and turn it into a JavaScript Object. You can use `JSON.parse()` in modern browsers (and IE9+). That's great, but how can I take that JavaScript Object and turn it...
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- 16 May at 14:8
Retrieve list of tasks in a queue in Celery
How can I retrieve a list of tasks in a queue that are yet to be processed?
Right query to get the current number of connections in a PostgreSQL DB
Which of the following two is more accurate? ``` select numbackends from pg_stat_database; select count(*) from pg_stat_activity; ```
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- 28 Mar at 09:32
Access to the path is denied when saving image
I'm trying to save an image to a folder in .NET C# but I get this exception: ``` Access to the path 'C:\inetpub\wwwroot\mysite\images\savehere' is denied.The error occured at mscorlib because at Sy...
SQL Query to concatenate column values from multiple rows in Oracle
Would it be possible to construct SQL to concatenate column values from multiple rows? The following is an example: Table A Table B Output of the SQL should be - So basically the Desc col...
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- 7 Oct at 05:1
Visual Studio - Resx File default 'internal' to 'public'
Every time I edit a resource file in VS, it regenerates the corresponding code and sets the class access modifier to internal. It's a pain to Ctrl-F -> ReplaceAll every time I edit the resx. Is there ...
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- 25 Nov at 06:28
Static implicit operator
I recently found this code: ``` public static implicit operator XElement(XmlBase xmlBase) { return xmlBase.Xml; } ``` What does `static implicit operator` mean?
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- 23 Dec at 16:31
TypeError: 'NoneType' object is not iterable in Python
What does `TypeError: 'NoneType' object is not iterable` mean? Example: ``` for row in data: # Gives TypeError! print(row) ```
How to get a resource id with a known resource name?
I want to access a resource like a String or a Drawable by its name and not its int id. Which method would I use for this?
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- 23 May at 16:47
Java code To convert byte to Hexadecimal
I have an array of bytes. I want each byte String of that array to be converted to its corresponding hexadecimal values. Is there any function in Java to convert a byte array to Hexadecimal ?
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- 13 Jan at 04:31
How can I change UIButton title color?
I create a button programmatically.......... ``` button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [button addTarget:self action:@selector(aMethod:) forControlEvents:UIControlEventTouchDown...
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- 18 Feb at 15:1
Unit Testing: DateTime.Now
I have some unit tests that expects the 'current time' to be different than DateTime.Now and I don't want to change the computer's time, obviously. What's the best strategy to achieve this?
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- 1 Mar at 14:58
How to disable logging on the standard error stream?
How to disable [logging](http://docs.python.org/library/logging.html) on the standard error stream in Python? This does not work: ``` import logging logger = logging.getLogger() logger.removeHandler(...
How can I efficiently parse HTML with Java?
I do a lot of HTML parsing in my line of work. Up until now, I was using the HtmlUnit headless browser for parsing and browser automation. Now, I want to separate both the tasks. I want to use a light...
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- 8 Dec at 14:25
How can I account for period (AM/PM) using strftime?
Specifically I have code that simplifies to this: ``` from datetime import datetime date_string = '2009-11-29 03:17 PM' format = '%Y-%m-%d %H:%M %p' my_date = datetime.strptime(date_string, format) ...
Cannot use ref or out parameter in lambda expressions
Why can't you use a ref or out parameter in a lambda expression? I came across the error today and found a workaround but I was still curious why this is a compile-time error. > [CS1628](https://lea...
What is a word boundary in regex?
I'm trying to use regexes to match space-separated numbers. I can't find a precise definition of `\b` ("word boundary"). I had assumed that `-12` would be an "integer word" (matched by `\b\-?\d+\b`) ...
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- 6 Oct at 07:10
Counting null and non-null values in a single query
I have a table ``` create table us ( a number ); ``` Now I have data like: ``` a 1 2 3 4 null null null 8 9 ``` Now I need a single query to count null not null values in column a
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- 13 Aug at 13:28
How do I calculate the normal vector of a line segment?
Suppose I have a line segment going from (x1,y1) to (x2,y2). How do I calculate the normal vector perpendicular to the line? I can find lots of stuff about doing this for planes in 3D, but no 2D stuf...