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To create a linked list in Java, a class or data structure that contains two fields is usually used:
- The value (data) of the node — for example, an object or a primitive type.
- A reference to the next node (next).
The data type for the node is often implemented as an inner class or a separate class with fields, for example:
class Node {
int data; // or another data type
Node next; // reference to the next element
Node(int data) {
this.data = data;
this.next = null;
}
}
This way, a linked list is created using a custom class (Node), where each element contains data and a reference to the next element in the list.