The following code fragment is an implementation of the count-controlled traversal of a singly linked list from Section3.4.5. Does it work? If not, explain the problem and how to fix it. (Note: this.length is the number of data nodes in the linked list and assume the visit() method is implemented and works properly.)

Question

```
SLNode cursor = head.getSuccessor();
for ( int count = 0; count <= this.length; count++ ) {
visit(cursor);
cursor = cursor.getSuccessor();
}


```

Answer 1

No, it does not work. The problem is with the condition of the for loop, count <= this.length. By doing this the loop will be performed 1 more than the end of the list because this.length gives the number of nodes starting from 1 but count starts from 0. Therefore there will be an error since cursor will be null. It can be corrected by making the condition count < this.length.