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Introduction

If you're a Java programmer, this short article will show you the basic concepts of functional programming and the reason why it may be getting more and more important in the near future. All sample code is in Java so it should be very easy to understand.

What is functional programming?

Functional programming is just like our programming in Java or C#, but without assignments. You may wonder is this possible at all? For example, to calculate the total price of a list of product prices, one might write in functional programming style (the code is still in Java):



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