As an alternative to rewriting the same code, many software development environments provide a library tool that organizes frequently used code. Once developers finish debugging some reusable code, ...

Extension methods provide a great way for extending a class functionality -- but it's interfaces that let you use those methods anywhere you want. Extension methods let you add functionality to an ...

If you need to have objects look alike but don't have any code to share, you don't need inheritance -- you need an interface. Here's an example of how interfaces provide a more flexible way to deal ...

An abstract class is a template definition of methods and variables in a specific class, or category of objects. In programming, objects are units of code, and each object is made into a generic class ...

Java’s interface language feature confuses many Java newbies. Many mistakenly assume that interfaces only sidestep Java’s failure to support multiple implementation inheritance. In reality, that ...