这样写错在哪里？

Question

public static void main(String[] args) {

int[] a = {5,2,33,31,54};

Dome01 test = new Dome01();

System.out.println(test.and(a));

}

public int[] and(int[] array){

Arrays.sort(array);

return array;

}

运行结果：[I@19e0bfd

Answer 1

//遍历一下数组a输出,在输出试试public static void main(String[] args) {     int[] a = { 5, 2, 33, 31, 54 };     Dome01 test = new Dome01 ();     test.and(a);     for (int i = 0; i < a.length; i++) {         System.out.print(a[i] + ",");     } } public int[] and(int[] array) {     Arrays.sort(array);     return array; }