In the node declaration example, which member stores the actual data held by a node?

In the node declaration example, which member stores the actual data held by a node?

• A. info
• B. link
• C. nodeType
• D. data

Answer: (A)

In a linked-list node, there are two essential pieces: the value it carries and the reference to the next node. The value, or the payload, is stored in the data field. In this node declaration, that payload is held by the member named info. The link member is the pointer to the next node, not the stored data. A field like nodeType would be for classification, and while data is a common name for the payload in other designs, this particular example uses info to hold the actual data.

In a linked-list node, there are two essential pieces: the value it carries and the reference to the next node. The value, or the payload, is stored in the data field. In this node declaration, that payload is held by the member named info. The link member is the pointer to the next node, not the stored data. A field like nodeType would be for classification, and while data is a common name for the payload in other designs, this particular example uses info to hold the actual data.