查找最接近的元素

参考代码:

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        int n = sc.nextInt();

        int [] a = new int[n];

        for (int i = 0; i <a.length ; i++) {

            a[i] = sc.nextInt();

        }

        int m = sc.nextInt();

        ArrayList<Integer> list = new ArrayList<>();

        Arrays.sort(a);

      while (m-->0) {

          int x=sc.nextInt();

          int min =x -a[0];

          int index = a[0];

          for (int j = 0; j < a.length; j++) {

              int l = Math.abs(x - a[j]);

                  if (l < min) {

                      int temp = l;

                      l = min;

                      min = temp;

                      index=a[j];

              }

          }

          list.add(index);

      }

        for (int i = 0; i <list.size() ; i++) {

            System.out.println(list.get(i));

        }

    }

}