为什么int数组的非重复计数返回的结果与Integer数组的计数不同？在这两种情况下，我都希望得到3的结果。
int[] numbers1 = { 1, 2, 3 };
System.out.println("numbers1: " + Arrays.toString(numbers1));
System.out.println("distinct numbers1 count: " + Stream.of(numbers1).distinct().count());
Integer[] numbers2 = { 1, 2, 3 };
System.out.println("numbers2: " + Arrays.toString(numbers2));
System.out.println("distinct numbers2 count: " + Stream.of(numbers2).distinct().count());
结果
numbers1: [1, 2, 3]
distinct numbers1 count: 1
numbers2: [1, 2, 3]
distinct numbers2 count: 3