华为面试题，10个数分成两组，两数组和的最小差

import java.util.Arrays;
import java.util.Scanner;
//1 2 3 4 5 6 7 8 9 10
// 6 7 8 9 10
public class Test2 {
    public static void main(String[] args) {


        //2.调用处理数组的函数
        Scanner sc  = new Scanner(System.in);
        int[] arr = new int[11];
        for (int i = 0; i < 11; i++) {
            arr[i] = sc.nextInt();

        }
        System.out.println(result(arr));



    public  static int result(int[] arr){
        int a[] =new int[arr.length / 2], b[] = new int[arr.length / 2];
        for (int i = 0; i < arr.length / 2; i++){
            a[i] = arr[i];
            b[i]  = arr[i + arr.length / 2];
        }
        System.out.println("交换处理后的数组a："+Arrays.toString(a));
        System.out.println("交换处理后的数组b："+Arrays.toString(b));
        getMinusArray(a,b);
        System.out.println("交换处理后的数组a："+Arrays.toString(a));
        System.out.println("交换处理后的数组b："+Arrays.toString(b));
        return Math.abs(getSum(a) - getSum(b));
    }


    //两数组进行元素交换实现最小差值
    public static void getMinusArray(int[] a, int[] b) {
        // 数组a和b的和
        int suma = getSum(a);
        int sumb = getSum(b);

        int startMinus = Math.abs(suma - sumb);
//      System.out.println("startMinus="+startMinus);
        int minus = 0;
        for(int i = 0; i < a.length; i++){
            for(int j = 0; j < a.length; j++) {
                //先交换
                int temp=a[i];
                a[i]=b[j];
                b[j]=temp;
                //交换后的差值
                minus = Math.abs(getSum(a) - getSum(b));
                if(minus