I come from a .NET back ground and just started working with Java. I found Java SE to be no problem since they closely follow the same concepts. However, when working with Java EE I found it to be a little bit more complicated than ASP .NET.

I am trying to implement the N-Tier architecture in a Java EE application. So I have already written my Logic & Data layers and tested them successfully in a Java SE application (which is my Administration back-end application) and have just started working on my Display layer.

Here comes the question. I am trying to call my business logic layer from JSP (Triggered by a button event) to invoke a certain method and return the result output (boolean for example) to the JSP. 

**How do I do that?**