I'm attempting to change the background color of an Android TextView widget when the user touches it. I've created a selector for that purpose, which is stored in res/color/selector.xml and roughly looks like that: ...

I'm thinking of creating a multi-tenant app using MongoDB. I don't have any guesses in terms of how many tenants I'd have yet, but I would like to be able to scale into the thousands. ...

Most people with a degree in CS will certainly know what Big O stands for . It helps us to measure how well an algorithm scales. ...

I'm the only one in my organization who's making commits with the following message: 2 Answers ...

I have an existing git repo (a bare one) which has up to this point only been writable by me. I want to open it up to some UNIX user group, foo, so that all members of foo can push to it. I'm aware that I can easily set up a new git repo with: ...

...een using git for about a year and would like to use tagging to, well, tag commits at different versions. I've found lots of info on the commands to use to work with tags, but what I'd like to know is why use tagging at all if I can just create a new branch called 1.1.0 and not have to cloud my mi...

I wrote a maven code on netbeans that has approximately more than 2000 lines. When I compile it on netbeans, everything is fine, but if I want to run it on command line, I will get these errors: ...

In an XML file, we can assign an ID to a view like android:id="@+id/something" and then call findViewById() , but when creating a view programmatically, how do I assign an ID? ...

I want to know the difference between sticky- and non-sticky sessions. What I understood after reading from internet: 2 Ans...

Let's say we have a billion unique images, one megabyte each. We calculate the SHA-256 hash for the contents of each file. The possibility of collision depends on: ...