What's the nearest substitute for a function pointer in Java?

Question

I have a method that\'s about ten lines of code. I want to create more methods that do exactly the same thing, except for a small calculation that\'s going to change one li

Answer 1

For each "function pointer", I'd create a small functor class that implements your calculation. Define an interface that all the classes will implement, and pass instances of those objects into your larger function. This is a combination of the "command pattern", and "strategy pattern".

@sblundy's example is good.