HashMap in Java | Collections Framework | Custom Key and Value | Java DSA Placement | FAANG

Lecture Resources https://github.com/Tiwarishashwat/Java-Plus-DSA-Placement-Course/tree/main/Lecture-066%20-%20HashMap%20in%20Java Prerequisite: https://youtu.be/CMA0MQQ3jhA 1. HashMap Data Structure in Java. 2. Insert in Hashmap 3. Search in Hashmap 4. Delete from HashMap 5. Update from HashMap 6. Iterate Hashmap using entryset 7. Iterate Hashmap using keyset 8. why we override equals and hashcode method of Key Class. 9. why we override equals method of Value Class. Java Plus DSA Placement Course Playlist: https://youtube.com/playlist?list=PLQ7ZAf76c0ZPVdhV1bAjFv0bQc1xHURzE Java Plus DSA Sheet: https://docs.google.com/spreadsheets/d/119u25NO-4ZJ9zwfUKs5eGNo0exCVq3gZEFWvkCDiMqI/edit?usp=sharing Notes: https://github.com/Tiwarishashwat/Java-Plus-DSA-Placement-Course Telegram Link: https://shashwattiwari.page.link/telegramShashwat Ultimate Recursion Series Playlist: https://youtube.com/playlist?list=PLQ7ZAf76c0ZMzC9OHPbo-dUgx6oU3T0jK Instagram Handle: (@shashwat_tiwari_st) https://shashwattiwari.page.link/shashwatInsta Samsung Interview Experience: https://youtu.be/GrvlpBzphSU Company Tags: Facebook | Amazon | Microsoft | Netflix | Google | LinkedIn | Pega Systems | VMware | Adobe | Samsung Timestamp: 0:00 - Introduction #ShashwatTiwari #coding​​ #problemsolving​ hashing in dsa, java hashmap, hashmap, hashmap java, java map, hashing map, what is map java, how to iterate a hashmap in java, Is insertion order maintained in hashmap, methods of hashmap collection, time complexity of hashmap data structure, how to use custom key in hashmap, how to use custom key-value in hashmap, custom class as key in hashmap, custom object as key in hashmap, hashmap with custom object as key, iterating map java, iterating a map in java, java iterate a map