The get(index) method in Java’s ArrayList is used to retrieve the element at a specified index. Here’s how it works:
Definition: The method belongs to the ArrayList class and returns the element at the specified position in the list.
Syntax: arrayList.get(index)
The index is an integer representing the position of the element (starting from 0).
Key Points:
The method throws an IndexOutOfBoundsException if the specified index is out of range (less than 0 or greater than or equal to the size of the list).
It provides O(1) time complexity for retrieving elements.
Examples of Usage:
Retrieve an element from a list by specifying its position.
Iterate over an ArrayList using get(index) for accessing each element.
This method is commonly used when the position of an element is known and precise retrieval is required.