Collection Framework in Java | Learn with Mr. Kiran Jadhav

Collection Framework- Collection it is a group of objects. 3 interfaces- 1. List- It allows duplication of data. It follows insertion order A] ArrayList- DDL[Read] B] LinkedList- DML[Insert/Update/Delete] 2. Set- It is a uniqueness A] HashSet- It does not maintain order - It allows one null element B] TreeSet- It follows order - It does not allow any null element 3. Map- K, V pair. Key must be unique and value allows duplicate A] HashMap- It does not maintain order - It allows one null key and allows multiple null values B] TreeMap- It follows order - It does not allow any null key but it allows multiple null values IQ- 1. Diff ArrayList vs LinkedList 2. When ConcurrentModificationException comes? 3. Explain Fail Fast vs Fail Safe iterator in Java - 2 classes in Java those are Fail Safe Iterator 1. CopyOnWriteArrayList 2. ConcurrentHashMap 4. What is LinkedHashSet - It is non-synchronized - It follows insertion order 5. What is LinkedHashMap - It is non-synchronized - It follows insertion order 6. What is ConcurrentHashMap - It is a fail safe iterator class in Java - It is used in MultiThreading environment to achieve Thread Safety - It does not allow any null key, value - It comes in JDK 1.5 7. How HashMap internally works? 1 Bucket- 16 block 2 method equals(), hashcode() 8. Diff List vs Vector 9. Diff HashMap vs Hashtable 10. Diff Comparable vs Comparator 11. Employee List- id, name, salary filter data salary sort data by salary sort by name fetch second largest salary record 12. Convert List into Map GitHub- https://github.com/fullstackjavadeveloperpune/collectionframework #Spring Boot #ApacheKafka #Java #Fullstack #JavaDevelopment #FullStackJavaDeveloper #softwaredevelopment 💻 Stay ahead in 2025 and beyond! 📢 Don't forget to like, share, and subscribe for more insightful content. Visit fullstackjavadeveloper.in for more details and enrollment opportunities. #CoreJava #ControlStatement #Java #Fullstack #FullStackJavaDeveloper #SpringBoot #SoftwareDevelopment Connect with us: Call or WhatsApp: +91 7887575991 / 020 47212644 [24/7 Support] Visit: fullstackjavadeveloper.in Facebook - https://www.facebook.com/fullstackjavadeveloper/ LinkedIn - https://www.linkedin.com/company/full-stack-java-developer-pune Instagram - https://www.instagram.com/fullstackjavadeveloper/ Meet Mr. Kiran Jadhav : Software Architect | Full Stack Book Author | Technical Keynote Speaker LinkedIn - https://www.linkedin.com/in/kiran-jadhav-22649b99/ guys if you like this video please do subscribe now and press the bell icon to not miss any update from Full Stack Java Developer, Pune #CodeDeployment #JavaApp #Programming #DevLife #TechTips #FileManagement #Coding #OpenSource #Java #TechTutorial #DeveloperCommunity #JavaProjects #LearnToCode #AppDevelopment #WebDevelopment #TechEducation #like #share #comment 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 above mentioned GitHub account