Do elements of a singly linked list have a reference to the next node?

Yes, in a singly linked list, each element (node) contains a reference to the next element in the list. This reference allows sequential traversal from one node to the next, starting from the head of the list and moving towards the end.

Example of a singly linked list node in Java:

class Node {
    int data;
    Node next; // reference to the next node

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

Thus, having a reference to the next node is a key feature of a singly linked list.