1、Java代码（直接运行版） packagelistnodes; importjava.util.Scanner; //Definitionforsingly-linkedlist. classListNode{ intval; ListNodenext; ListNode(){} ListNode(intval){this.val=val;} ListNode(intval,ListNodenext){this.val=val;this.next=next;} } publicclassLinkedListTest{ publicstaticvoidmain(String[]ar...