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    1. package com.algorithm.demo.searchsorts;
    3. import com.alibaba.fastjson.JSONObject;
    5. /**
    6.  * @Author leijs
    7.  * @date 2022/4/15
    8.  */
    9. public class Demo3 {
    10.     public static void main(String[] args) {
    11.         int[] li = new int[]{2, 7, 11, 15};
    12.         System.out.println(JSONObject.toJSONString(twoSum(li, 26)));
    13.     }
    15.     private static int[] twoSum(int[] li, int target) {
    16.         for (int i = 0; i < li.length; i++) {
    17.             for (int j = i + 1; j < li.length; j++) {
    18.                 if (li[i] + li[j] == target) {
    19.                     return new int[]{i, j};
    20.                 }
    21.             }
    22.         }
    23.         return null;
    24.     }
    25. }