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As a result ArrayList is slower than LinkedList and the latter is preferred in case you need to perform insert and delete operations in the middle of a collection.LinkedList worked 200 times faster than ArrayList when 0.1 million elements were inserted at the start of the collection.
Let us now deep into the difference of ArrayList<E> and arrays. 5 differences are mentioned below. The major difference between the two is that arrays are fixed length data structure. But, ArrayList is variable length, which means ArrayList can grow or shrink its size dynamically. ArrayList is backed by an array. ArrayList can roughly increment its size by 1.5 times.