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Interview Q&A Weekend Series #2 🚀 | Lambda Confused? Comparable & Comparator @Javatechie
#javatechie #microservice #springboot #qa
👉👉 Ever wondered why Comparable isn't a functional interface even though it has just one method? 🤔
In this video, we break down the surprising reason behind it — and how Comparator works perfectly with lambdas while Comparable doesn’t! 💡
Using a real-world example with a Student class, we’ll explore the core difference, the lambda limitations, and the logic the Java designers followed.
🔍 Topics Covered:
✔️ Functional Interfaces in Java
✔️ Lambda expressions with Comparator
❌ Why Comparable doesn't work with lambdas
🧠 Real-world examples + explanation
🧨 Hurry-up & Register today itself!🧨
Devops for Developers course (Live class ) 🔥🔥:
https://javatechie.ongraphy.com/courses/Devops-for-Developers-64f1e07be4b0bbd6b56f7c05
COUPON CODE : NEW24
Spring boot microservice Premium course lunched with 70% off 🚀 🚀
COURSE LINK : Spring boot microservice course link :
https://javatechie.ongraphy.com/courses/Spring-Boot--Microservice-62c3e1f20cf25d97f28f9fa8
PROMO CODE : SPRING50
GitHub:
https://github.com/Java-Techie-jt
Blogs:
https://javatechie4u.medium.com/
Facebook:
https://www.facebook.com/groups/javatechie
💡 Bookmark this page for quick access so you can easily find the right content whenever you need it.
📌 Don't forget to subscribe to the [JavaTechie YouTube Channel](https://www.youtube.com/c/JavaTechie) for more in-depth tutorials! 🎥🔥
---
## 🚀 Core Java
🔹 Java 8 → (https://www.youtube.com/watch?v=-1XE__rrbjQ&list=PLVz2XdJiJQxzrdrpglCv_nWIO5CDIqOVj)
## 🌱 Spring Framework
🔥 Spring Boot Complete Course → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxw-jVLpBfVn2yqjvA1Ycceq)
🔐 Spring Security → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxynOpTm0DuufOkfWHNamJsF)
📦 Spring Data JPA → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxxdOhu-xmEUYDzY_Pz8cRGa)
⚡ Spring Batch → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxyC2LMLgDjFGJBX9TJAM4A2)
💰 Spring Transaction → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxxj_zMhm6zCPO6zhtOcq-wl)
☁️ Spring Cloud → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxz3L2Onpxbel6r72IDdWrJh)
🔄 Spring Reactive → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxyB4Sy29sAnU3Eqz0pvGCkD)
## 📩 Messaging Systems
📡 Kafka for Beginners → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwpWGoNokohsSW2CysI6lDc)
## 🏗️ Microservices
🌍 Microservices → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxxWhFkucZBoMxeYE6qTgEF8)
🏛 Microservice Design Patterns → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxw1H3JVhclHc__WYDaiS1uL)
## 🤖 GenAI for Beginners
🎭 Learn ChatGPT, Google Bard, and DeepSeek → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxx695lRqc4v3V-YitV6ERfn)
## ☁️ DevOps & Cloud
🐳 Docker → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxzMiFDnwxUDxmuZQU3igcBb)
☸️ Kubernetes → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxybsyOxK7WFtteH42ayn5i9)
🌍 AWS (Amazon Web Services) → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxxurKT1Dqz6rmiMuZNdClqv)
## 🎨 Frontend Development
🎨 Angular Full Course → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwAhzEZSpDqXlfT7XvNPDIE)
## 🎯 Interview Preparation
🎤 Interview FAQs → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwS8FyWnWyKyfILxHPLsiro)
## 🛠️ Tools
🖥 GitHub → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxxeLS2a9DPp0jY3SBgNw8NV)
🏗 Jenkins → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwS0BZUHX34ocLTJtRGSQzN)
🔍 Splunk → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwLTK4h387zBtxyKwMkhTXU)
## 🗄️ Databases
📊 NoSQL (MongoDB, Neo4j, Cassandra, Solr) → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxyxZK0ggHweWODoVTkXsWUA)
## 🌍 Web Services
🌐 REST Web Services → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwXNIHPzUz8kP734ZYf8Avu)
🛠 SOAP Web Services → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxyp_3TWxX3YdkPCwQPFTIXN)
📢 Stay Updated & Subscribe 🔔 [JavaTechie YouTube Channel](https://www.youtube.com/c/JavaTechie)
Join this channel to get access to perks:
https://www.youtube.com/javatechie/join
🔔 Guys, if you like this video, please do subscribe now and press the bell icon to not miss any update from Java Techie.
Disclaimer/Policy:
📄 Note: All uploaded content in this channel is mine and it's not copied from any community, you are free to use source code from the above-mentioned GitHub account.
Видео Interview Q&A Weekend Series #2 🚀 | Lambda Confused? Comparable & Comparator @Javatechie канала Java Techie
👉👉 Ever wondered why Comparable isn't a functional interface even though it has just one method? 🤔
In this video, we break down the surprising reason behind it — and how Comparator works perfectly with lambdas while Comparable doesn’t! 💡
Using a real-world example with a Student class, we’ll explore the core difference, the lambda limitations, and the logic the Java designers followed.
🔍 Topics Covered:
✔️ Functional Interfaces in Java
✔️ Lambda expressions with Comparator
❌ Why Comparable doesn't work with lambdas
🧠 Real-world examples + explanation
🧨 Hurry-up & Register today itself!🧨
Devops for Developers course (Live class ) 🔥🔥:
https://javatechie.ongraphy.com/courses/Devops-for-Developers-64f1e07be4b0bbd6b56f7c05
COUPON CODE : NEW24
Spring boot microservice Premium course lunched with 70% off 🚀 🚀
COURSE LINK : Spring boot microservice course link :
https://javatechie.ongraphy.com/courses/Spring-Boot--Microservice-62c3e1f20cf25d97f28f9fa8
PROMO CODE : SPRING50
GitHub:
https://github.com/Java-Techie-jt
Blogs:
https://javatechie4u.medium.com/
Facebook:
https://www.facebook.com/groups/javatechie
💡 Bookmark this page for quick access so you can easily find the right content whenever you need it.
📌 Don't forget to subscribe to the [JavaTechie YouTube Channel](https://www.youtube.com/c/JavaTechie) for more in-depth tutorials! 🎥🔥
---
## 🚀 Core Java
🔹 Java 8 → (https://www.youtube.com/watch?v=-1XE__rrbjQ&list=PLVz2XdJiJQxzrdrpglCv_nWIO5CDIqOVj)
## 🌱 Spring Framework
🔥 Spring Boot Complete Course → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxw-jVLpBfVn2yqjvA1Ycceq)
🔐 Spring Security → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxynOpTm0DuufOkfWHNamJsF)
📦 Spring Data JPA → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxxdOhu-xmEUYDzY_Pz8cRGa)
⚡ Spring Batch → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxyC2LMLgDjFGJBX9TJAM4A2)
💰 Spring Transaction → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxxj_zMhm6zCPO6zhtOcq-wl)
☁️ Spring Cloud → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxz3L2Onpxbel6r72IDdWrJh)
🔄 Spring Reactive → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxyB4Sy29sAnU3Eqz0pvGCkD)
## 📩 Messaging Systems
📡 Kafka for Beginners → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwpWGoNokohsSW2CysI6lDc)
## 🏗️ Microservices
🌍 Microservices → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxxWhFkucZBoMxeYE6qTgEF8)
🏛 Microservice Design Patterns → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxw1H3JVhclHc__WYDaiS1uL)
## 🤖 GenAI for Beginners
🎭 Learn ChatGPT, Google Bard, and DeepSeek → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxx695lRqc4v3V-YitV6ERfn)
## ☁️ DevOps & Cloud
🐳 Docker → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxzMiFDnwxUDxmuZQU3igcBb)
☸️ Kubernetes → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxybsyOxK7WFtteH42ayn5i9)
🌍 AWS (Amazon Web Services) → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxxurKT1Dqz6rmiMuZNdClqv)
## 🎨 Frontend Development
🎨 Angular Full Course → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwAhzEZSpDqXlfT7XvNPDIE)
## 🎯 Interview Preparation
🎤 Interview FAQs → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwS8FyWnWyKyfILxHPLsiro)
## 🛠️ Tools
🖥 GitHub → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxxeLS2a9DPp0jY3SBgNw8NV)
🏗 Jenkins → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwS0BZUHX34ocLTJtRGSQzN)
🔍 Splunk → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwLTK4h387zBtxyKwMkhTXU)
## 🗄️ Databases
📊 NoSQL (MongoDB, Neo4j, Cassandra, Solr) → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxyxZK0ggHweWODoVTkXsWUA)
## 🌍 Web Services
🌐 REST Web Services → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxwXNIHPzUz8kP734ZYf8Avu)
🛠 SOAP Web Services → (https://www.youtube.com/playlist?list=PLVz2XdJiJQxyp_3TWxX3YdkPCwQPFTIXN)
📢 Stay Updated & Subscribe 🔔 [JavaTechie YouTube Channel](https://www.youtube.com/c/JavaTechie)
Join this channel to get access to perks:
https://www.youtube.com/javatechie/join
🔔 Guys, if you like this video, please do subscribe now and press the bell icon to not miss any update from Java Techie.
Disclaimer/Policy:
📄 Note: All uploaded content in this channel is mine and it's not copied from any community, you are free to use source code from the above-mentioned GitHub account.
Видео Interview Q&A Weekend Series #2 🚀 | Lambda Confused? Comparable & Comparator @Javatechie канала Java Techie
Java Comparable vs Comparator Java functional interface Comparable not functional interface Java lambda expression Comparator lambda Java Comparable explained functional interface Java Java interview question Java tutorial Java Comparable vs Comparator lambda expression in Java Java Comparable issue Java Comparator example Java 8 functional interface javatechie
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4 мая 2025 г. 17:56:06
00:12:48
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