/* * File: linear_search.java * Created Time: 2022-11-25 * Author: Krahets (krahets@163.com) */ package chapter_searching; import include.*; public class linear_search { /* 线性查找(数组) */ static int linearSearch(int[] nums, int target) { // 遍历数组 for (int i = 0; i < nums.length; i++) { // 找到目标元素,返回其索引 if (nums[i] == target) return i; } // 未找到目标元素,返回 -1 return -1; } /* 线性查找(链表) */ static ListNode linearSearch(ListNode head, int target) { // 遍历链表 while (head != null) { // 找到目标结点,返回之 if (head.val == target) return head; head = head.next; } // 未找到目标结点,返回 null return null; } public static void main(String[] args) { int target = 3; /* 在数组中执行线性查找 */ int[] nums = { 1, 5, 3, 2, 4, 7, 5, 9, 10, 8 }; int index = linearSearch(nums, target); System.out.println("目标元素 3 的索引 = " + index); /* 在链表中执行线性查找 */ ListNode head = ListNode.arrToLinkedList(nums); ListNode node = linearSearch(head, target); System.out.println("目标结点值 3 的对应结点对象为 " + node); } }