This example shares the specific code for Java to implement one-way linked list inversion for your reference. The specific content is as follows
1. Implement code
public class LinkedListTest { public static void main(String[] args) { Node A = new Node("A"); Node B = new Node("B"); Node C = new Node("C"); Node D = new Node("D"); Node E = new Node("E"); Node F = new Node("F"); A.next = B; B.next = C; C.next = D; D.next = E; E.next = F; print(A); LinkedListReversor reversor = LinkedListReversor.RECURSION; System.out.println(reversor.getStrategy() + ":"); Node tmp = reversor.execute(A); print(tmp); reversor = LinkedListReversor.NO_RECURSION; System.out.println(reversor.getStrategy() + ":"); print(reversor.execute(tmp)); } private static void print(Node node) { while (node != null) { System.out.print(node.value); node = node.next; if (node != null) { System.out.print("->"); } else { System.out.println(); } } } } } } class Node { public String value; public Node next; public Node(String value) { this.value = value; }}enum LinkedListReversor { RECURSION("Recursion") { @Override public Node execute(Node node) { Node prev = null; if (node == null || node.next == null) { prev = node; } else { Node tmp = execute(node.next); node.next.next = node; node.next = null; prev = tmp; } return prev; } }, NO_RECURSION("Non-recursive") { @Override public Node execute(Node node) { Node prev = null; while (node != null) { Node tmp = node; node = node.next; tmp.next = prev; prev = tmp; } return prev; } }; private String strategy; private LinkedListReversor(String strategy) { this.strategy = strategy; } public abstract Node execute(Node node); public String getStrategy() { return strategy; }}2. Implementation ideas
Recursion: Starting from the tail
Non-recursive: Start processing from the head
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