【オンライン】 JJUGナイトセミナー「Objects to Functions」4/25(火) 開催

Tue, 25 Apr 2023 20:00 - 21:00 JST

YouTube Live

YouTube Live


time Schedule

time session
20:00~20:05 Opening
20:05~20:55 From Objects to Functions by Uberto Barbini
20:55~21:00 Closing

From Objects to Functions

Learning Functional Programming in the field. Taking examples from two chapters of my book "From Objects to Functions" ( we will see how using a functional approach changes the error handling and the logging parts of our application.
Using exceptions to recover from errors in our programs goes against the principle of functional programming because it will prevent us from defining the logic composing pure functions since an Exception cannot be a valid return value for a pure function.
In this talk, I'll present some possible techniques to handle errors differently and, arguably, make our code easier to read and maintain.

Uberto Barbini (@ramtop)
Uberto is a Google Developer Expert on Kotlin with more than 20 years of experience designing and building successful software products in (too) many industries. He is very passionate about writing the best code to deliver value to the business, in the shortest time, and not only once but at a regular pace.When not coding, Uberto loves public speaking, mentoring, and writing. He authored a book about Functional Programming in Kotlin (
You can read his blog here:

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日本Javaユーザーグループ/Japan Java User Group

日本Javaユーザーグループ/Japan Java User Group

日本におけるJavaユーザーグループです。 公式サイト/Official site

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