Question

What technique would you use if a method needs to return more than one IntNode, such as a method that returns both a head and tail reference for a list.

Answer 1

If a method needs to return more than one IntNode, such as a method that returns both a head and tail reference for a list, you can create a class or a custom data structure that encapsulates both the head and tail references.

Step-by-step explanation:

If a method needs to return more than one IntNode, such as a method that returns both a head and tail reference for a list, you can create a class or a custom data structure that encapsulates both the head and tail references. This can be achieved by creating a new class with two instance variables, one for the head reference and one for the tail reference.

For example, you can create a ListWithHeadAndTail class that has a head and tail variable:

public class ListWithHeadAndTail {
private IntNode head;
private IntNode tail;

// constructor, getters, and setters
}

Using this approach, the method can then return an instance of the ListWithHeadAndTail class, containing both the head and tail references.