I've used the following script to see if a file exists: 20 Answers 20 ...

I've read about the difference between double precision and single precision. However, in most cases, float and double seem to be interchangeable, i.e. using one or the other does not seem to affect the results. Is this really the case? When are floats and doubles interchangeable? What are the d...

I have 2 pages: xyz.com/a and xyz.com/b . I can only access xyz.com/b if and only if I login to xyz.com/a first. If accessing xyz.com/b without going through the other, I simply get access denied (no redirect to login) via the browser. Once I login at xyz.com/a , I can access the other. ...

Lets say I have one cell A1, which I want to keep constant in a calculation. For example, I want to calculate a value like this: ...

I have my text editor to automatically trim trailing whitespace upon saving a file, and I am contributing to an open source project that has severe problems with trailing whitespace. ...

I have two objects in C# and don't know if it's Boolean or any other type. However when I try to compare those C# fails to give the right answer. I have tried the same code with VB.NET and that did it ! ...

I'm investigating a rails app - the prod server has two version of a specific gem installed, how can I tell which version the prod app is using? ...

Is it possible to have default arguments in Matlab? For instance, here: 16 Answers 16...

Please can you tell me if it is possible to overload operators in Java? If it is used anywhere in Java could you please tell me about it. ...

When I use Java based on my C++ knowledge, I love to initialize variable using the following way. 11 Answers ...