Explain about arraylist?
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Answer / Deepak Goswami
Arraylist in Java is a dynamic array-like data structure that resides inside the ArrayList class. The ArrayList class implements the List interface and extends AbstractList class. An ArrayList can store any type of data (objects), similar to an array, but its size can grow or shrink as needed.nAn ArrayList allows duplicates and null elements, maintains insertion order, and does not guarantee that the elements are stored contiguously in memory. It provides several methods for adding, removing, accessing, and sorting data.
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