I have two Python dictionaries, and I want to write a single expression that returns these two dictionaries, merged (i.e. taking the union). The update() method would be what I need, if it returned its result instead of modifying a dictionary in-place. ...

I have a multi-step registration process , backed by a single object in domain layer , which have validation rules defined on properties. ...

We've been using WiX for a while now, and despite the usual gripes about ease of use, it's going reasonably well. What I'm looking for is useful advice regarding: ...

I understand the basics of how ports work. However, what I don't get is how multiple clients can simultaneously connect to say port 80. I know each client has a unique (for their machine) port. Does the server reply back from an available port to the client, and simply state the reply came from 80? ...

I was going through data access technologies supported by Spring, and I noticed that it mentions multiple options and I am not sure about the difference among them: ...

When Traversing a Tree/Graph what is the difference between Breadth First and Depth first? Any coding or pseudocode examples would be great. ...

I am using HTTPURLConnection to connect to a web service. I know how to use HTTPURLConnection but I want to understand how it works. Basically, I want to know the following: ...

I have an existing iOS app and want to add a large chunk of code that I've been developing as another project just for ease of testing. The new chunk basically deals with saving an image to various sharing services, etc.. Because that sharing code needs a lot of testing and future updating, I was wo...

We are required to use a Makefile to pull everything together for our project, but our professor never showed us how to. 7 ...

Could someone explain? I understand the basic concepts behind them but I often see them used interchangeably and I get confused. ...