Java array of enum values

Question

Machine is defined as public enum Machine{...}

_machines is defined as private Machine[] _machines;

Don't know why this doesn't work:

_machines = {Machine.a, Machine.b};

error message:

illegal start of expression

Thank you guys!

Answer 1

您缺少Array声明的一小部分。

_machines = new Machine[]{Machine.a, Machine.b};

Answer 2

如果你给它一个大小，这也可以在最初被声明为空。

_machines = new Machine[size];