我这样做比较简单

public class Solution {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        int[][] array=new int[n][8];
        for (int i = 0; i < n; i++) {
            for (int j = 0; j <8 ; j++) {
                array[i][j]=sc.nextInt();
            }
        }
        for (int i = 0; i < n; i++) {
            System.out.println(isNum(array[i])?"Yes":"No");
        }
    }
    public static boolean isNum(int[] array){
        int[] a=new int[4];
        int[] b=new int[4];
        for (int i = 0; i <array.length ; i++) {
            if(i<4){
                a[i]=array[i];
            }else{
                b[i-4]=array[i];
            }
        }
        Arrays.sort(a);
        Arrays.sort(b);
        if((a[1]-a[0]==a[3]-a[2])&&(b[1]-b[0]==b[3]-b[2])) {
            return true;
        }
        return false;
    }

}