... immutable objects can allow substantial optimization; this is presumably why strings are also immutable in Java, developed quite separately but about the same time as Python, and just about everything is immutable in truly-functional languages. in...

...de reader application which — via Android's intent mechanism — can be called by other applications who wish to integrate barcode scanning. The easiest way to do this is to call the ZXing SCAN Intent from your application, like this: public Button.OnClickListener mScan = new Button.OnClickListe...

...emoves an element from the page layout entirely, as if it wasn’t there. All other values for display cause the element to be a part of the page, so in a sense they’re all opposite to display:none. But there isn’t one value that’s the direct converse of display:none - just like there's no o...

...resizing URL bars in iOS and Android. I understand the purpose, but they really need to think through the strange functionality and havoc they bring to websites. The latest change, is you can no longer "hide" the URL bar on page load on iOS or Chrome using scroll tricks. EDIT: While the above scrip...

...e - that's a task for git log. Ron DeVera touches on this, but you can actually do a lot more than what he mentions. Since git log internally calls the diff machinery in order to print requested information, you can give it any of the diff stat options - not just --shortstat. What you likely want to...

...here using a JOIN or an IN will give me the correct results... Which typically has better performance and why? How much does it depend on what database server you are running? (FYI I am using MSSQL) ...

So, after 6 months of hard work finally released my application. Today I found the first web site where people download it cracked, and I was wondering if any of you fellow programmers know how to react to such stuff? ...

...n in the URL. For example: URLs are stored in web server logs - typically the whole URL of each request is stored in a server log. This means that any sensitive data in the URL (e.g. a password) is being saved in clear text on the server ...

...e method will take any number of parameters. While this may sound like a small difference, it is a big issue when you enter the realms of Linq and Expressions. Our default repository interface looks like this: public interface IRepository : IDisposable { T[] GetAll<T>(); T[] GetAll&lt...

... I find it really annoying to have to swap out the default TextView everywhere to use custom fonts or use a reflection based solution like this. Combined with the limiting set of fonts available in android, it makes developing good lookin...