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Does a doubly linked list object store a pointer to the previous element?

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Answer from AI

Yes, in a doubly linked list object, a pointer to the previous element is stored.

A doubly linked list is a data structure where each element (node) contains:

  • a reference (pointer) to the next element;
  • a reference (pointer) to the previous element;
  • data.

This allows efficient traversal of the list in both directions.

Example of a doubly linked list node in Java:

class Node {
    int data;
    Node next;
    Node prev;

    Node(int data) {
        this.data = data;
        this.next = null;
        this.prev = null;
    }
}
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