仮想通貨

Agenda: 18:00 Doors Open 18:20 Intro/Sponsor Welcome 18:30 Doors Closed! (the reception on the ground floor will not be served anymore.. come early!) 18:30 **Here we go again: Java26 / Dominik Dorn** 19:30 Break, Food, Drinks 19:55 Raffle 20:00 **Java-UIs modernisieren ohne JavaScript — Webswing & webforJ in der Praxis / Stephan Wald** 21:00 Networking Talk 1: **Here we go again: Java 26** We'll explore everything new in Java 26! **Java-UIs modernisieren ohne JavaScript — Webswing & webforJ in der Praxis / Stephan Wald** Ihr habt eine Swing-Anwendung. Oder Eclipse RCP. Oder Oracle Forms. Das Management will sie „im Browser". Der Reflex: React-Frontend, REST-APIs, JavaScript-Entwickler einstellen, zwei Stacks pflegen. Aber muss das sein? Es gibt inzwischen mehrere Java-native Ansätze für Web-UIs — ihr kennt vermutlich einige davon aus früheren Meetups. Die meisten setzen voraus, dass ihr eure UI von Grund auf neu schreibt und bestehenden Code hinter REST-APIs kapselt. Unser Ansatz ist ein anderer: Wir zeigen einen **zweistufigen Migrationspfad**, der mit der unveränderten Bestandsanwendung im Browser startet und die Modernisierung dann Bildschirm für Bildschirm vorantreibt — ohne den Betrieb zu unterbrechen und ohne eine zweite Technologie einzuführen. Im ersten Schritt kommt **Webswing** zum Einsatz — eine Laufzeitumgebung, die Java-Desktop-Anwendungen (Swing, JavaFX, SWT, Eclipse RCP) unverändert im Browser bereitstellt, indem sie auf Toolkit-Ebene in die AWT-Pipeline eingreift und das Rendering über HTML5 Canvas und WebSocket an den Client streamt. Im zweiten Schritt zeigen wir **webforJ** — ein Open-Source-Framework (Apache 2.0), mit dem moderne Web-UIs komponentenbasiert in purem Java entstehen: Routing, Data Binding, responsive Layouts, Spring-Boot-Integration — ohne eine Zeile JavaScript. Der technische Kern des Abends: * **Webswing unter der Haube:** Wie die Custom-`Toolkit`-Implementierung funktioniert, was auf Server- vs. Client-Seite passiert, und wo die Latenz-Grenzen liegen * **webforJ-Architektur:** Server-seitiges Component Model auf Basis von DWC (Dynamic Web Client) Web Components, Event-Handling im Vergleich zum Swing-Listener-Modell, Layout-System (`FlexLayout` vs. `BorderLayout`) * **`WebswingConnector`:** Die Integrationsbrücke — wie eine webforJ-Anwendung eine Webswing-Session einbettet und bidirektionale Kommunikation zwischen Legacy-Swing-Code und modernem UI ermöglicht * **Live-Code:** Vom minimalen webforJ-Hello-World bis zur Hybrid-App mit eingebettetem Swing-Panel — wir bauen es vor euren Augen * **Ehrliche Trade-offs:** Wann dieser Ansatz passt, wann nicht — und was er im Vergleich zu einem reinen UI-Framework-Wechsel bringt und kostet Wir bringen einen Praxisbericht mit: Ein niederländischer ERP-Anbieter hat mit einem kleinen Team in vier Monaten die ersten Web-Module produktiv geschaltet — ohne JavaScript-Expertise im Haus. **About the Speaker** Stephan Wald entwickelt seit über 35 Jahren Enterprise-Software, seit über 20 Jahren in Java. Seine Erfahrung umfasst C++, C#, mehrere Business-Basic-Dialekte sowie heute primär Java. Als Head of Development und Mitglied der Geschäftsleitung bei BASIS International Ltd. (Albuquerque, USA) verantwortet er die Entwicklung des webforJ-Frameworks, eines Single-Stack-UI-Frameworks für geschäftskritische Java- und Kotlin-Anwendungen in mittelständischen und großen Unternehmen weltweit. Parallel baut er mit [SkillsPilot.de](http://skillspilot.de/) eine KI-gestützte SaaS-Plattform im HR-Consulting, die mit namhaften deutschen Unternehmen mit bis zu 20.000 Mitarbeitenden wächst. Speaker auf der JavaOne 2026.

Every Tuesday, 13:00 – 18:00 Looking for a little extra motivation to tackle your to-do list? Join us for our weekly Body Doubling event at Villa Vida! What is Body Doubling? Body doubling is a productivity technique where simply working alongside others helps you stay focused, accountable, and motivated. Whether you’re studying, working remotely, or just need a space to concentrate, being around others who are also focused can make a difference. What to Expect: A relaxed, supportive environment for getting things done Quiet spaces for deep work and focus Free WiFi throughout the cafe Bring your laptop, notebooks, or anything else you need to stay on track. Drop in anytime from 13:00-18:00 – we’re here every Tuesday to keep you in good company and good spirits while you work. See you there!  *** Jeden Dienstag, 13:00 – 18:00 Brauchst du ein bisschen extra Motivation, um deine To-Do-Liste abzuarbeiten? Dann komm zu unserem wöchentlichen Body-Doubling-Event bei Villa Vida! Was ist Body Doubling? Body Doubling ist eine Produktivitätstechnik, bei der die Anwesenheit anderer dir hilft, fokussiert, motiviert und bei der Sache zu bleiben. Ob beim Lernen, Arbeiten im Homeoffice oder anderen Aufgaben – das Arbeiten neben Gleichgesinnten kann einen echten Unterschied machen. Was dich erwartet: Eine entspannte, unterstützende Atmosphäre zum konzentrierten Arbeiten Ruhige Bereiche für tiefe Konzentration Kostenloses WLAN im gesamten Café Bringe deinen Laptop, deine Notizen oder alles andere mit, was du brauchst, um produktiv zu sein. Komm jederzeit zwischen 13:00 und 18:00 Uhr vorbei – wir sind jeden Dienstag hier, um dir Gesellschaft und positive Energie zu bieten. Bis bald! 

This event takes places in the beautiful atmosphere of the Still Point - Meditation Center we begin the Evening with chanting and guided meditations to settle the mind in a relaxed, open and receptive state • from connecting to the stillness within we start experimenting with various drawing exercises to open and expand the sense of seeing, softening habitual patterns and enhance sensitivity \~ Letting go of expectations and orientation on results we explore playfully diverse creative processes for making inner movements visible all material will be provided! we offer snacks and drinks as well as time and space to socialize : ) the fee for the evening is **10€** (Students: 8€) image: Odilon Redon, The Buddha

Join us for our regular Tuesday evening playing Padel. **How we play** Intermediate and Advanced Players are welcome (no beginners on Tuesday, please join us on Friday or Sunday instead). Number of courts depends on the number of players * 4-7 players: one court * 8-11 players: two courts * 12-15 players: three courts Ideally, 6, 10 or 14 players are attending * Then you play two matches in a row and then take a break * A match is played in a single set. First team reaching four games wins the match. We play a minimum of six games per set (means even after 4:0 you still play two more games in this set) If an odd number of players are attending, we adapt to the situation Teams are mixed all the time. So you will play with/against different players during the event * Teams are put together based on their skill level * We focus on having balanced teams **Price** * 10 € for 1h * 17 € for 2h * If you need a racket, you can rent it from us for 2 € (limited number available). Otherwise you can always rent from the venue for 5 € * We use the money to cover the courts rent, base-subscription for renting, providing balls and rackets **Cancellation** * Please cancel at least 4h before the event. Otherwise you have to pay the fee for one hour * We understand that sometimes unexpected things can come up. However, not showing up and failing to let us know is considered disrespectful and goes against our community spirit. Uncommented no-shows may result in being excluded from future events. **Other information** * The venue has courts **outdoor only**. Dress accordingly to the weather * We are respectful and warm with each other. Our cultural and professional background is diverse * The hosts or regular players, can ask misbehaving players to step out from the court, in order to maintain the good vibes * The hosts and regular players are entitled to send players different courts to have balanced teams * Most of the time we go on a drink after the event at the venue's restaurant. You're welcome to join us **Important** * You are playing on your own risk * Playing competitive is allowed (Smashing balls, hitting balls close to opponent player etc.) * Playing friendly is our main goal * Please announce the hosts, and/or the players on your court, if you have some injuries or specific conditions * Be welcome with newcomers

🌞 **SALE EL SOL** 🌞 *Interactive Musical Story for the Whole Family* Step into a magical world of music, art, and flavor — a unique experience designed to share with children and awaken the senses. 📅 **April 7** 🕚 **11:00 AM & 3:00 PM** 📍 **Q19 OF – District 19, Vienna** ✨ What to expect: 🎶 Live bilingual music (Spanish – German) 🎨 Creative visual arts workshop for children ☕ Colombian fair-trade coffee tasting by **Cafecito Colombia** (available for purchase) – find us every Tuesday at Q19 🥟 Delicious Argentine empanadas by **Empanada Blitz** 🎭 **Artists** Eugenia Méndez – piano, voice & storytelling (Spanish) Gustavo Méndez-Liska – visual arts & storytelling (German) 💛 *Learn through the arts and experience with your senses.* Bring your family, invite your friends, and enjoy a meaningful cultural experience together. #ViennaEvents #FamilyEvent #LiveMusic #ArtForKids #ColombianCulture

📢 Main event starts at 18:30 CET René has a passion for collecting unusual code constructs and presenting them anonymously to an interested audience. Any resemblance to existing code is purely coincidental 🤭. There will be plenty of opportunities to puzzle over the quirks of C++, whether you are an experienced developer or just curious about the language. The challenges might drive you crazy if you tackle them alone, but working together as a group, you just might make it through. The main goal is to enjoy the challenge, not take things too seriously, and have some fun along the way. 🧠 All you need is your brain - no notebooks needed. 🪙 We appreciate any **voluntary donations** on-site. ⏱️ Arrive early for pre-socializing—simple snacks and drinks will be provided. 🍕 After the event, we will relocate to a pizzeria (at your own expense).

This time, Tipsy Tuesday is partying with all the STUWO residents👨🏻‍🎓🧑🏻‍🎓 for the Spring Break🌸! Come join us for the weekly event Tipsy Tuesday🍸 @DAM/DAM Nightclub🪩 One night 🌜. One vibe🕺🏽. No excuses🙅🏽‍♂️. If you miss this... you'll hear about it all week🥴. Get your [tickets here](https://tipsytuesday.world/guestlist/iQHuxbvZ6peMdaRw) 🎫

⭐️Speed Networking Vienna Make connections. Find opportunities. Meet new friends. ⭐️Looking to expand your circle, meet inspiring people and actually enjoy the process? This is not just about business contacts — it’s about real human connection, shared interests and new friendships that can grow into something meaningful. 🔄 How it works: 10-minute one-to-one chats, new person each round. Easy, natural and relaxed — no awkward vibes, no forced conversations. ⭐️Perfect for people from different professions who want to connect, collaborate, exchange ideas and simply meet great new people. 💎Price 10€ and order a drink 📌 Limited spots – registration required. Come for the networking. Stay for the conversations. Leave with new contacts and new friends. 💬✨ Join us on Instagram https://www.instagram.com/makegoodfriends?igsh=YjA2czVxNjF0cGJi&utm_source=qr

Welcome to the "Fantasy and Historical Fiction" Reading Circle of the Social Book Club! We will meet to discuss **T. Kingfisher's** fantasy novel **"Nettle and Bone"** (243 pages). The meeting point is at JO&JOE on the 5th floor. Drinks and some food can be bought there, so if possible please buy something for reasons of politeness, if you can afford it, since they provide the space for free. Book Description: *After years of seeing her sisters suffer at the hands of an abusive prince, Marra—the shy, convent-raised, third-born daughter—has finally realized that no one is coming to their rescue. No one, except for Marra herself.* *Seeking help from a powerful gravewitch, Marra is offered the tools to kill a prince—if she can complete three impossible tasks. But, as is the way in tales of princes, witches, and daughters, the impossible is only the beginning.* *On her quest, Marra is joined by the gravewitch, a reluctant fairy godmother, a strapping former knight, and a chicken possessed by a demon. Together, the five of them intend to be the hand that closes around the throat of the prince and frees Marra's family and their kingdom from its tyrannous ruler at last.*

This is a **Special Film Club Event** - **Short Films** **Collection - Animated** We the Lovely Folks of the **Saturday Film Club, are back for the 26th Edition** this Saturday! 🎬🌿🕊️ ☀️ We start at **18:30** hrs. Films chosen for this week are: **Tennis Ball on His Day Off (2020, 6 min)** **Puparia (2020, 4 min)** **Teacups (2023, 5 min)** **Acrobats (6 min)** **The Village (2019, 14 min)** **Kandittund! (Seen It!) (2021, 20 min)** **Pachyderme (2022, 11 min)** **Wade (2019, 11 min)** **War Is Over! (2023, 11 min, Oscar Winner)** **Retirement Plan (2023, 17 min)** 🍽️ Post Meetup Food at **China Zentrum Stiegengasse**! 😁😁 If you just joined, please fill up this survey so we can better tailor the films we show. [https://forms.gle/juPwhehSV2NosLee9](https://forms.gle/juPwhehSV2NosLee9) PS - I can guarantee comfortable seating for 15 people. For the rest there are chairs. People in the waitlist can show up as well, because a lot of people sign up but don't show up. The event takes place at the Social Welfare organization called **MUT**. It is an organisation that works on social issues such as Emergency & Homeless Assistance, Food Rescue and Environment Protection. **MUT** is a non profit organization that provides us with the space to host the event. A small donation towards their cause helps them a lot.

Welcome Book Lovers! Join our Meet Up Group to find like-minded book readers! This event is for everybody interested in listening or sharing new book content or comment on it. You are welcome just to come for inspiration. You definitely don't need to read books at the moment. It is a gathering for everybody to find like-minded people interested in learning something new. :) Feel free to bring your own book with you. The event will take place at the volunteer organisation MUT. It is an organisation to supports humans, animals and the environment especially in Vienna. I am happy to host it there. MUT or the Social Book Club look forward to some donation to cover the cost of this event. If you would like to help, please bring some cash with you. This is the address: Rechte Wienzeile 37, 1040 Wien Walk until the end of the main entrance hall. At the end of the hallway you find a big green gate with a sign of the Social Book Club. Please give your best to be on time so that we can have a nice introduction round together. If you can't attend anymore please cancel the event to give someone else the space to come. :) Check out the Social Book Club Website for more content: https://socialbookclub.de/ Looking forward to seeing you there! :)

**Kurz gesagt "Linien und Schatten -Workshop":** Wenn du eine transformative Erfahrung machen möchtest, die deine Zeichenfähigkeiten verbessert und dir hilft, dein Talent zu entdecken, bist du hier genau richtig. **Das Kohle-Kulli-Graphit Workshop.** Wir treffen uns jeden **Donnerstag** von 18:30 bis 21:00 Uhr im **Atelier La Villa**, Hasenauerstraße 38, 1190 Wien, **Du hast die Möglichkeit:** … **Zeichentechniken** mit verschiedenen Medien (Graphit, Kohle und Stifte) zu entwickeln … deine **visuelle Wahrnehmung** zu verändern und zu verbessern … **Bilder zu schaffen**, von abstrakt bis fotorealistisch … abzuschalten, zu meditieren und einer **kreativen Aktivität nachzugehen** Wenn du bereits zeichnen kannst, aber dein volles Potenzial noch nicht ausgeschöpft hast, **ist dies der richtige Workshop für dich.** In den 5 Lektionen à 2,5 Stunden werden wir viele Arten von Übungen durchführen, die darauf abzielen, die Wahrnehmung von Linien, Formen und dreidimensionalen Volumen zu entwickeln. Wir werden uns im freien Zeichnen und in der gestischen Zeichnung üben. Wir werden lernen, wie man mit Stift, Bleistift und Kohle Tonwertskalen erstellt. Wir werden nützliche Hilfsmittel zur Wahrnehmung von Tonwerten entwickeln und lernen, wie man Zeichnungen anhand von Referenzbildern erstellt, überträgt oder vergrößert. Natürlich werden wir in nur 5 Lektionen unser Bestes tun, um deinen Wunsch, die Kunst des Zeichnens zu erlernen, zu erfüllen, aber unser Angebot wird mit dem Kauf von 2 oder 3 Blöcken à 5 Lektionen immer vorteilhafter. Du musst dich nicht im Voraus entscheiden, du kannst deine Erfahrungen mit dem ersten Block machen und wenn du zufrieden bist, kannst du weitermachen und die folgenden Blöcke erhalten einen reduzierten Preis. **Hier sind unsere Preise:** **1 Block** (5 Lektionen) **kostet 150 €**. (12,5 Stunden) **2 Blöcke** (10 Lektionen) **kosten 280 €.** **3 Blöcke (15 Lektionen**) kosten **390 €**. **Falls du aus irgendeinem Grund nicht fünfmal kommen kannst**, die Preise für: 3 Sitzungen kosten **105 €** oder 2 Sitzungen kosten **80 €** . **"Linien und Schatten".** Das Kohle-Kulli-Graphit Workshop. Lerne zeichnen mit Freude, schärfe deine Wahrnehmung und entdecken deine Fähigkeit zu zeichnen. **Begrenzte Teilnehmerzahl.** **Materialien für den Kurs:** Bleistifte, Kohle, Kugelschreiber, Radiergummis. Zeichenpapier oder Skizzenblock **[Atelier La Villa](https://www.facebook.com/groups/1722413698382263)**[, Hasenauerstraße 38, 1190 Vienna.](https://www.facebook.com/groups/1722413698382263)

## **A Queer Book Club Exploring Gender, Politics, and Power** Join us this April for our Queer Book Club at Villa Vida Café as we dive into *Who’s Afraid of Gender?* by Judith Butler — one of the most influential thinkers in contemporary gender theory. In this session, we’ll unpack Butler’s latest work, which examines how “gender” has become a political flashpoint across the world. The book explores how anti-gender movements operate, what’s at stake, and how language, fear, and power shape public discourse. This is a space for collective reading, critical thinking, and community exchange. No academic background needed—just curiosity and openness. *** ## **About the Book** *Who’s Afraid of Gender?* looks at the global backlash against gender theory and LGBTQIA+ rights. Butler analyzes how gender has been framed as a threat in political rhetoric, and what this reveals about broader struggles over democracy, freedom, and identity. Expect themes like: * Anti-gender movements and moral panic * The politics of language and framing * Queer and trans resistance * Power, fear, and ideology *** ## **Event Details** * **Date:** Sunday, April 12, 2026 * **Time:** 14:00 * **Location:** Villa Vida Café * **Room:** Main Café Space * **Language:** English (German possible if needed) *** ## **What to Expect** * Guided but open discussion * Space to share reflections or just listen * Community-focused and low-pressure atmosphere * Mixed group: regulars + new faces always welcome You don’t have to finish the book to join—but it helps. *** ## **Accessibility & Community Care** * Step-free access available * Accessible toilet * This is a queer-centered, respectful space * No tolerance for discriminatory behavior *** ## **Collaboration** **The Queer Book Club is hosted In collaboration with** [o*books](http://o-book.at/) & [hint.wien](http://hint.wien/). Once you’ve joined, you can order the books to read at a discounted rate at o\*books.

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow

**Our April novel is: *The Hong Kong Widow* by Kristen Loesch** **This month’s novel blends gothic atmosphere with historical fiction and chilling horror, set against the haunting backdrop of China. The book is 368 pages in print and 10 hours and 42 minutes on audiobook.** In 1950s Hong Kong, Mei is a young refugee of the Chinese Communist revolution struggling to put her past in Shanghai behind her. When she receives a shocking invitation—to take part in a competition in one of the city's most notorious haunted houses, pitting six spirit mediums against one another in a series of six séances over six nights, until a single winner emerges—she has every reason to refuse. Except that the hostess, a former Shanghainese silent film star, is none other than the wife of the man who once destroyed Mei’s entire life. It is promised the winner will receive a fortune, but there is only one prize Mei wants: revenge. Decades later, the final night of that competition has become an infamous urban legend: The police were called to the scene of a brutal massacre but found no evidence, dismissing it as a collective hallucination. Mei knows what she saw, but now someone else is convinced they know what she did. She must uncover the truth about the last night she ever spent in that house—even if the ghosts of her past are waiting for her there. . . .

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

Join us for pizza and conversation at Vick’s Gourmet Pizza! 🍕 Good slices, good stories, and plenty of laughs around the table. Come hungry, bring your best conversation, and let’s enjoy a relaxed evening with great company. Extra cheese and extra chatter encouraged! 😄

The Humanist Monthly Program is our longest running event and still a community favorite. In the old days it used to be called "Going to HCCO" and we still like to think of it as our flagship event. We will be hearing from Becca Powell, Director of Advocacy and Outreach at Unchained At Last, an organization whose mission is dedication to ending forced and child marriage in the United States through direct services and systems change. Unchained At Last's mission clearly meshes and addresses several of our Humanist Ten Commitments. Becca will educate us about an issue many of us may not be familiar with--but should be. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. Going forward our meetings will be hybrid. You can meet us in-person or attend online Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC) The formal presentation will start at noon