Data Structures and Algorithms in Java
6th Edition
ISBN: 9781118771334
Author: Michael T. Goodrich
Publisher: WILEY
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Expert Solution & Answer
Chapter 3, Problem 6R
Explanation of Solution
Method to find the second-to-last node in singly linked list to indicates the last node as null next reference:
//Define the secondToLast() method
private Node<E> secondToLast( )
{
//Check whether the size is less than "2"
if (size < 2)
//Throw an exception
throw new IllegalStateException("List contains two or more entries");
//Create a node to hold the head value
Node<E> ptr = head;
/*Loop executes until the "ptr" is not equal to "null". */
while (ptr−>next−>next != null)
/*Second to last node is determined and assigned to "ptr"...
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Chapter 3 Solutions
Data Structures and Algorithms in Java
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