Ajinkya Kothe’s Post

4 Common ArrayList Mistakes Developers Make ❌ 1. Removing While Iterating (Enhanced For Loop) Leads to → ConcurrentModificationException ❌ 2. Not Pre-Sizing Large Lists Frequent resizing = new array creation = performance overhead. ❌ 3. Using ArrayList in Multi-Threaded Apps It is NOT thread-safe. ❌ 4. Ignoring Time Complexity Insert/delete in middle = O(n) #Java #ArrayList #CollectionsFramework #BackendDevelopment #JavaDeveloper #Programming #SoftwareEngineering #Performance #Coding #TechCareer #SpringBoot #day46ofJavaandSpringboot

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