Worum es bei uns geht

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Die "Java User Group Saarland" ist ein Treffpunkt für Java-Technologie Gourmets und solche die es werden wollen! Du arbeitest mit / liebst Java-Technologien, hast Lust dich auszutauschen, an Hands-on Workshops teilzunehmen oder interessante Vorträge zu hören?

Dann ist die "Java User Group Saarland" genau der richtige Ort für dich! :)

JUGSaar Intro Slides (https://github.com/jugsaar/jugsaar-press/raw/master/short-intro/Kurzvorstellung%20JUGSaar%202016_Dez.pdf)

Bevorstehende Events (1)

Blockchain 101 for Java Developers - Kevin Wittek

Online-Event

Wir freuen uns auch im Mai wieder einen spannendes Vortragsprogramm bieten zu können. Diesmal möchte uns Kevin Wittek das Thema Blockchain anhand von verschiedenen Java Libraries näher bringen. Kevin forscht aktuell auf dem Gebiet von Blockchains und ist Maintainer des Test-Containers Open Source Projekts. Außerdem ist er regelmäßiger Sprecher auf Konferenzen und Guitarist bei Iron Kobra https://ironkobra.bandcamp.com/

Für den Vortrag werden wir ein Zoom Meeting (https://zoom.us/) verwenden, das wir kurzfristig in den Meeting Details verlinken. Damit das Socialising nicht zu kurz kommt, werden wir den Dienst Wonder.me (https://www.wonder.me/) verwenden, um den Abend mit Diskussionen zu verschiedenen Themen ausklingen zu lassen.

Wie freuen uns schon sehr darauf, viele von euch wiedersehen zu dürfen.
Auf einen interessanten Abend!

/Abstract
We all know the effects of the Gartner hype cycle and with regards to Blockchain technology we might wonder: Are we still on the “Peak of Inflated Expectations” or did we crash into the “Trough of Disillusionment”? No matter the current state, let’s hope we are at one point heading to the “Plateau of Productivity”, however this might look.
Aside from the hype and the buzzword bingo, blockchain as a technology contains a lot of interesting concepts and building blocks from a diverse range of computer science domains, such as cryptography, distributed computing, fault tolerant computer systems or formal verification.

In this talk we want to take a closer look at those basic building blocks. Without regard to which cryptocurrencies or blockchain frameworks rise in the next few years, knowing about those fundamentals will be a worthwhile endeavor with a stable return on investment. It will also provide ammunition in the next big discussion with a manager requesting to “3-D print a blockchain and HTML into a bitcoin”.
I will go through the history of computer science and cryptography with regards to blockchain and distributed ledger technology, starting as early as the 70s, and we will end up in the present day and see how we can interact with Ethereum Smart Contracts using Java and web3j.

/Bio
Kevin Wittek
Testcontainers co-maintainer and Testcontainers-Spock author, in love with FLOSS. Received the Oracle Groundbreaker Ambassador award for his contributions to the Open Source community. Software Craftsman and testing fan. Plays the electric guitar and is a musician in his second life. Found his own company during his university years, developing mobile apps and client-server applications, which introduced him to Grails and the Groovy ecosystem. Fell in love with TDD because of Spock. After many years working in the industry as a software engineer, Kevin is now doing his PhD at the Institute for Internet Security and is leading a research team in the field of blockchain technology.

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