Identify two benefits of using ArrayList over array in software development.

Identify two benefits of using ArrayList over array in software development.

Identify two benefits of using ArrayList over array in software development.

A.
reduces memory footprint

B.
implements the Collection API

C.
is multi.thread safe

D.
dynamically resizes based on the number of elements in the list

Explanation:
ArrayList supports dynamic arrays that can grow as needed. In Java, standard
arrays are of a fixed length. After arrays are created, they cannot grow or shrink, which means that
you must know in advance how many elements an array will hold. But, sometimes, you may not
know until run time precisely how large of an array you need. To handle this situation, the
collections framework defines ArrayList. In essence, an ArrayList is a variable-length array of
object references. That is, an ArrayList can dynamically increase or decrease in size. Array lists

are created with an initial size. When this size is exceeded, the collection is automatically
enlarged. When objects are removed, the array may be shrunk.



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