java - 为什么在这种情况下不会发生自动装箱？

Question

我想知道为什么在以下情况下不会发生自动装箱:

int [] array = new int[]{1,3,6,2,-1,6};// if it had been Integer instead of int, would have worked.
List<Integer> liston = Arrays.asList(array);

它没有自动自动装箱有什么特别的原因吗？

提前致谢。

Answer 1

您可以在自动装箱上阅读 here :

Autoboxing is the automatic conversion that the Java compiler makes between the primitive types and their corresponding object wrapper classes. For example, converting an int to an Integer, a double to a Double, and so on. If the conversion goes the other way, this is called unboxing.

正如您在最后看到的那样，自动装箱的类型有:boolean、byte、char、float、int、long 和 short。 数组不自动装箱

编译器会这样做对您来说似乎很合乎逻辑，但这种行为非常复杂，需要非常复杂的编译器。