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Iteration performance: When iterating over an ArrayList, accessing elements by index can be slower than using an array, because each element is accessed through a function call rather than direct memory access. Memory usage: ArrayList can use more memory than arrays because it stores each element as an object, which requires additional memory overhead. Overhead: ArrayList has a small amount of overhead compared to arrays, which can affect performance in certain situations.

Here are some advantages and disadvantages of using an ArrayList in Kotlin:ĭynamic resizing: Unlike arrays, ArrayList can resize dynamically, which means you can add or remove elements from the list as needed.įlexible storage: ArrayList can store objects of any type, making it useful for storing collections of heterogeneous data.Įasy manipulation: ArrayList provides a variety of methods for adding, removing, and manipulating elements in the list, making it easy to work with.