Java Interfaces VERSTEHEN in 8 min | Java Programmieren Lernen Deutsch - 36
Jonas Keil
@JonasKeilAbout
Welcome! I'm Jonas Keil, Business Informatics Graduate & AI Trainer. I help you leverage Artificial Intelligence and automation to maximize your productivity. On this channel, you'll find easy-to-follow tutorials on: 🚀 Artificial Intelligence (AI): Master ChatGPT, Google Gemini, Claude, and the best AI image generators. ⚙️ Automation & AI Agents: Step-by-step guides on building AI Agents and workflows using n8n. 🎓 Not sure where to start? Start here with the free AI Fundamentals Course: https://youtube.com/playlist?list=PLO-P6W97sI0TA4ZyczELZ6b2Pk20r0S48&si=RstI_IzfxXuprsNC 🎁 Want immediate results? Grab the AI Deepdive Workbook (Currently only available in German): https://myablefy.com/s/jonaskeil/ki-workbook 📬 Contact: For business inquiries, please use the contact form: https://jonaskeil.com/#contact Legal: Content Responsibility: Jonas Keil
Video Description
Interfaces bilden in Java die Grundlage für fortgeschrittene Programmierung. Deshalb zeige ich dir in diesem Video alles, was du über Interfaces in Java wissen musst. 0:00 Einleitung 0:08 Beschreibung Interfaces 0:49 Interface Beispiel 1:38 Ein Interface erstellen 2:07 Aufbau & Funktion von Interfaces 4:25 Bedeutung von Interfaces 7:59 Infos 📚Das könnte dich auch interessieren: - Rekursion in Java: https://www.youtube.com/watch?v=KwB0gjnYvoY - Listen in Java: https://www.youtube.com/watch?v=crm0yaneCb0 - Annotationen in Java: https://www.youtube.com/watch?v=zNVU1uCSIxc 🚀 Lerne #Java in einer Playlist - https://youtu.be/zA-FVu9zNLc&list=PLO-P6W97sI0Q-o0oZy8NeUgi0s5WKK8IV Interfaces können am Anfang kompliziert erscheinen... aber sicher wirst du es trotzdem verstehen! :) Meinen Respekt, wenn du neben dem #Tutorial mitmachst und dich an den Challenges versuchst! Dann wirst du Interfaces in Java wirklich verinnerlichen! Lass mich in den Kommentaren wissen ob dir dieses Video geholfen hat, Interfaces besser zu verstehen! 👾 Code aus den Tutorials: https://github.com/Jonas-Keil/learn-java ============ 🔔 Abonniere um kein weiteres Video zu verpassen: https://www.youtube.com/c/JonasKeil?sub_confirmation=1 ============ 📢 Link zur Discord-Community: https://discord.gg/wkWe3FvdSu ============ 🎉 Wenn dir meine Videos gefallen, unterstütze mich auf Patreon: https://www.patreon.com/JonasKeil ▬👇🏻Wichtige Links👇🏻 ▬▬▬▬ 1. Java IDEA 💻 aus den Videos: https://www.jetbrains.com/de-de/idea/download/ 2. Links zu meinem Equipment 🛠: https://kit.co/JonasKeil/studio-setup 3. Musik 🎶 aus allen Tutorials: https://www.epidemicsound.com/referral/tm20ft 4. Java Bücher📚 die ich dir empfehlen kann: https://kit.co/JonasKeil/die-besten-java-bucher ▬✨Über diesen Kanal✨ ▬▬▬▬ Du bist Student oder Schüler und möchtest die Programmiersprache Java Lernen, weißt aber nicht wo du anfangen sollst? Dann bist du auf diesem Kanal genau richtig! Du findest auf diesem Kanal einen Leitfaden, der dir dabei hilft als Java Anfänger Schritt für Schritt Java zu lernen. Ich weiß, dass das nicht immer leicht ist und gebe mein Bestes, dir das Ganze so gut wie möglich zu erklären :) Viel Spaß!! Jonas Keil❤ #Programmieren #Java PS: Einige der Links in dieser Beschreibung sind Affiliate-Links, von denen ich eine Rückvergütung erhalte :)
iPhone 13 Pro Max Essentials
AI-recommended products based on this video

for Magsafe Car Mount【20 Strong Magnets 】Magnetic Phone Holder for Car Phone Holder Mount Dash【360°】Cell Phone Mount for Car Accessories,Car Mount for iPhone 16 Pro Max 15 14 13 12 Plus MagSafe Cases
![VANMASS [85+LBS Strongest Suction & Clip] 2025 Upgrade Car Phone Holder [Patent & Safety Certs] Cell Phone Mount Truck Stand for Dashboard Windshield Vent for iPhone 16 Pro Max 15 14 13 12 Samsung](https://m.media-amazon.com/images/I/71bHSP1cRkL._AC_UL960_FMwebp_QL65_.jpg)
VANMASS [85+LBS Strongest Suction & Clip] 2025 Upgrade Car Phone Holder [Patent & Safety Certs] Cell Phone Mount Truck Stand for Dashboard Windshield Vent for iPhone 16 Pro Max 15 14 13 12 Samsung
![iPhone Charger Fast Charging [Apple MFi Certified] USB C to Lightning Cable 6FT USBC to Lightning Cable Nylon Braided Type C Cord for iPhone 14 13 12 11 Pro Max XR XS X 8 7 6 Plus SE, iPad](https://m.media-amazon.com/images/I/517jTqwo1nL._AC_UL960_FMwebp_QL65_.jpg)
iPhone Charger Fast Charging [Apple MFi Certified] USB C to Lightning Cable 6FT USBC to Lightning Cable Nylon Braided Type C Cord for iPhone 14 13 12 11 Pro Max XR XS X 8 7 6 Plus SE, iPad
![iPhone Charger [Apple MFi Certified] 3FT, 3Pack USB A to Lightning Cable Braided Fast Charging Apple Cord Compatible with iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad/iPod/AirPods](https://m.media-amazon.com/images/I/71xZOlUELbL._AC_UL960_FMwebp_QL65_.jpg)
iPhone Charger [Apple MFi Certified] 3FT, 3Pack USB A to Lightning Cable Braided Fast Charging Apple Cord Compatible with iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad/iPod/AirPods

2Pack 10ft iPhone Charger 90 Degree Lightning Cable Right Angle Long USB Charging Cord Compatible with Apple iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad iPod

Magnetic Wireless Charger for iPhone - 3 in 1 Mag-Safe Charging Station for Multiple Devices Apple - Charger Stand Dock for Apple Watch iPhone 16 15 14 13 12 Pro Max Plus Airpods

4-in-1 Wireless Magnetic Power Bank 10800mAh Portable Charger with iWatch Charger, QC4.0+20W PD Fast Charging USB C Battery Pack for Magsafe, iPhone 16/15/14/13/12 Series, Apple Watch etc. (White)

eazpower for Magsafe Power Bank 10000mAh, Magnetic Battery Pack Wireless, 20W PD Fast Charging, Compact Portable Charger with Built-in Cables and Stand for iPhone 16/15/14/13/12/ Apple Watch/Airpods

soundcore by Anker P20i True Wireless Earbuds, 10mm Drivers with Big Bass, Bluetooth 5.3, 30H Long Playtime, IPX5 Water-Resistant, 2 Mics for AI Clear Calls, 22 Preset EQs, Customization via App

Anker USB C Charger Cable (6ft 100W, 2Pack), USB 2.0 Type C Fast Charging Cable for iPhone 15 / 15Pro / 15Plus / 15ProMax MacBook Pro 2020, iPad Pro 2020, iPad Air 4, Samsung Galaxy S23+/S23 Ultra ClimatePartner certified

soundcore by Anker Q20i Hybrid Active Noise Cancelling Headphones, Wireless Over-Ear Bluetooth, 40H Long ANC Playtime, Hi-Res Audio, Big Bass, Customize via an App, Transparency Mode, Ideal for Travel

soundcore by Anker Q20i Hybrid Active Noise Cancelling Headphones, Wireless Over-Ear Bluetooth, 40H Long ANC Playtime, Hi-Res Audio, Big Bass, Customize via an App, Transparency Mode, Ideal for Travel

Spigen Case for iPhone 16 Case, Liquid Air Armor Designed for Apple iPhone 16 - Matte Black
![VANMASS [85+LBS Strongest Suction & Clip] 2025 Upgrade Car Phone Holder [Patent & Safety Certs] Cell Phone Mount Truck Stand for Dashboard Windshield Vent for iPhone 16 Pro Max 15 14 13 12 Samsung](https://m.media-amazon.com/images/I/71bHSP1cRkL._AC_UL960_FMwebp_QL65_.jpg)
VANMASS [85+LBS Strongest Suction & Clip] 2025 Upgrade Car Phone Holder [Patent & Safety Certs] Cell Phone Mount Truck Stand for Dashboard Windshield Vent for iPhone 16 Pro Max 15 14 13 12 Samsung
![iPhone Charger Fast Charging [Apple MFi Certified] USB C to Lightning Cable 6FT USBC to Lightning Cable Nylon Braided Type C Cord for iPhone 14 13 12 11 Pro Max XR XS X 8 7 6 Plus SE, iPad](https://m.media-amazon.com/images/I/517jTqwo1nL._AC_UL960_FMwebp_QL65_.jpg)
iPhone Charger Fast Charging [Apple MFi Certified] USB C to Lightning Cable 6FT USBC to Lightning Cable Nylon Braided Type C Cord for iPhone 14 13 12 11 Pro Max XR XS X 8 7 6 Plus SE, iPad
![iPhone Charger [Apple MFi Certified] 3FT, 3Pack USB A to Lightning Cable Braided Fast Charging Apple Cord Compatible with iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad/iPod/AirPods](https://m.media-amazon.com/images/I/71xZOlUELbL._AC_UL960_FMwebp_QL65_.jpg)
iPhone Charger [Apple MFi Certified] 3FT, 3Pack USB A to Lightning Cable Braided Fast Charging Apple Cord Compatible with iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad/iPod/AirPods

2Pack 10ft iPhone Charger 90 Degree Lightning Cable Right Angle Long USB Charging Cord Compatible with Apple iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad iPod

Anker Nano USB C Wall Charger,45W Fast Charging Smart Display Charger,with 180°Foldable Plug,Smart Recognition,Built-in Care Mode,for iPhone17/16/15 (Non-Battery,One USB-C Port,No Cable Included) ClimatePartner certified
![iPhone Charger Fast Charging [Apple MFi Certified] USB C to Lightning Cable 6FT USBC to Lightning Cable Nylon Braided Type C Cord for iPhone 14 13 12 11 Pro Max XR XS X 8 7 6 Plus SE, iPad](https://m.media-amazon.com/images/I/517jTqwo1nL._AC_UL960_FMwebp_QL65_.jpg)
iPhone Charger Fast Charging [Apple MFi Certified] USB C to Lightning Cable 6FT USBC to Lightning Cable Nylon Braided Type C Cord for iPhone 14 13 12 11 Pro Max XR XS X 8 7 6 Plus SE, iPad
![Aioneus iPhone Charger [Apple MFi Certified] 6FT USB Charger Cable Fast Charging USB to Lightning Cable Braided Cord Compatible with iPhone 14 13 12 11 Pro Max XR XS X 8 7 6 Plus SE, iPad](https://m.media-amazon.com/images/I/51ZEZjLgr2L._AC_UL1500_FMwebp_QL65_.jpg)
Aioneus iPhone Charger [Apple MFi Certified] 6FT USB Charger Cable Fast Charging USB to Lightning Cable Braided Cord Compatible with iPhone 14 13 12 11 Pro Max XR XS X 8 7 6 Plus SE, iPad
![iPhone Charger [Apple MFi Certified] 3FT, 3Pack USB A to Lightning Cable Braided Fast Charging Apple Cord Compatible with iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad/iPod/AirPods](https://m.media-amazon.com/images/I/71xZOlUELbL._AC_UL960_FMwebp_QL65_.jpg)
iPhone Charger [Apple MFi Certified] 3FT, 3Pack USB A to Lightning Cable Braided Fast Charging Apple Cord Compatible with iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad/iPod/AirPods
![iPhone Charger Apple Charger,[Apple MFi Certified]2 Pack Apple Type C Wall Charger Block with 2 Pack [6FT&10FT] Long USB C to Lightning Cable for iPhone 14/13/12/12 Pro Max/11/Xs Max/XR/X,AirPods Pro](https://m.media-amazon.com/images/I/61D9UFpTAEL._AC_UL960_FMwebp_QL65_.jpg)
iPhone Charger Apple Charger,[Apple MFi Certified]2 Pack Apple Type C Wall Charger Block with 2 Pack [6FT&10FT] Long USB C to Lightning Cable for iPhone 14/13/12/12 Pro Max/11/Xs Max/XR/X,AirPods Pro
![Anker USB C Cable, [2-Pack, 6 ft] Type C Charger Premium Nylon USB Cable, USB A to Type C Charging Cable Fast Charge for Samsung Galaxy S10 S10+ / Note 8, LG V20 and Other USB C Charger (Black)](https://m.media-amazon.com/images/I/71N7xhCJnoL._AC_UL960_FMwebp_QL65_.jpg)
Anker USB C Cable, [2-Pack, 6 ft] Type C Charger Premium Nylon USB Cable, USB A to Type C Charging Cable Fast Charge for Samsung Galaxy S10 S10+ / Note 8, LG V20 and Other USB C Charger (Black)

Anker USB C Charger Cable (6ft 100W, 2Pack), USB 2.0 Type C Fast Charging Cable for iPhone 15 / 15Pro / 15Plus / 15ProMax MacBook Pro 2020, iPad Pro 2020, iPad Air 4, Samsung Galaxy S23+/S23 Ultra ClimatePartner certified

Anker Nano USB C Wall Charger,45W Fast Charging Smart Display Charger,with 180°Foldable Plug,Smart Recognition,Built-in Care Mode,for iPhone17/16/15 (Non-Battery,One USB-C Port,No Cable Included) ClimatePartner certified
![VANMASS [85+LBS Strongest Suction & Clip] 2025 Upgrade Car Phone Holder [Patent & Safety Certs] Cell Phone Mount Truck Stand for Dashboard Windshield Vent for iPhone 16 Pro Max 15 14 13 12 Samsung](https://m.media-amazon.com/images/I/71bHSP1cRkL._AC_UL960_FMwebp_QL65_.jpg)
VANMASS [85+LBS Strongest Suction & Clip] 2025 Upgrade Car Phone Holder [Patent & Safety Certs] Cell Phone Mount Truck Stand for Dashboard Windshield Vent for iPhone 16 Pro Max 15 14 13 12 Samsung
![iPhone Charger Fast Charging [Apple MFi Certified] USB C to Lightning Cable 6FT USBC to Lightning Cable Nylon Braided Type C Cord for iPhone 14 13 12 11 Pro Max XR XS X 8 7 6 Plus SE, iPad](https://m.media-amazon.com/images/I/517jTqwo1nL._AC_UL960_FMwebp_QL65_.jpg)
iPhone Charger Fast Charging [Apple MFi Certified] USB C to Lightning Cable 6FT USBC to Lightning Cable Nylon Braided Type C Cord for iPhone 14 13 12 11 Pro Max XR XS X 8 7 6 Plus SE, iPad
![iPhone Charger [Apple MFi Certified] 3FT, 3Pack USB A to Lightning Cable Braided Fast Charging Apple Cord Compatible with iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad/iPod/AirPods](https://m.media-amazon.com/images/I/71xZOlUELbL._AC_UL960_FMwebp_QL65_.jpg)
iPhone Charger [Apple MFi Certified] 3FT, 3Pack USB A to Lightning Cable Braided Fast Charging Apple Cord Compatible with iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad/iPod/AirPods

2Pack 10ft iPhone Charger 90 Degree Lightning Cable Right Angle Long USB Charging Cord Compatible with Apple iPhone 14 13 12 11 Pro Max XS XR X 8 7 6 5 Plus iPad iPod

Apple AirPods Pro 2 Wireless Earbuds, Bluetooth Headphones, Active Noise Cancellation, Transparency, Personalized Spatial Audio, High-Fidelity Sound, H2 Chip, USB-C Charging

3 in 1 Charging Station for iPhone, Wireless Charger for iPhone 16 15 14 13 12 11 X Pro Max & Apple Watch - Charging Stand Dock for AirPods Global Recycled Standard

3 in 1 Charging Station for iPhone, Wireless Charger for iPhone 16 15 14 13 12 11 X Pro Max & Apple Watch - Charging Stand Dock for AirPods (Blue) Global Recycled Standard
![iPhone 16 15 Charger [Apple MFi Certified] 2 Pack USB C Wall Charger Block 6FT USB C to Type C Cable Compatible with iPhone 16 15 Pro Max,16e, AirPods Pr, iPad Pro12.9/11, Samsung/Android Phones](https://m.media-amazon.com/images/I/51GjkZn3ACL._AC_UL960_FMwebp_QL65_.jpg)






















