Suppose I have an attribute called phone number and I would like to enforce certain validity on the entries to this field. Can I use regular expression for this purpose, since Regular Expression is...

I have a class which implements AutoCloseable, and is intended to be used with Java 7's new try-with-resources construct. However, I can't figure out a way to guarantee that the user of my class us...

Let us assume we have a trait T. What is the best way to achieve the following: Everybody who writes an implementation of T should be forced to provide a possibility that allows a parameter-free ...

In the Datomic Schema doco - they mention a schema attribute called db/isComponent. This appears to refer to relationships defined by :db.type/ref. The db/isComponent isn't used in the Seattle ex...

I've inherited a large C++ codebase for several Windows applications that successfully is in use by many customers. The codebase is large, >1mill LOC. The codebase has a history of 15+ years. The...

let's say I have public delegate DataSet AutoCompleteDelegate( string filter, long rowOffset); can I make the following class to enforce that method signature? (just a conjured up idea): publ...