public static void main(String[] args) {
  int[] arr1 = {1, 2, 3, 4, 5};
  int[] arr2 = {10, 9, 8, 7, 6};
  System.out.println(Arrays.toString(concat(arr1, arr2)));
  if (equals(arr1, arr2)) {
    System.out.println("完全相同");
   } else {
    System.out.println("不同");
   }
​
}
  static boolean equals(int[] array1, int[] array2) {
    boolean flag = true;
    if (array1.length == array2.length) {
      for (int i = 0; i < array1.length; i++) {
        if (array1[i] == array2[i]) {
​
         } else {
          flag = false;
          break;
         }
       }
     } else {
      flag = false;
     }
    return flag;
   }
​
}