java - 有人能解释一下这个关于枚举的程序在java中是如何工作的吗？

Question

代码如下:

enum Status {

    STATUS_OPEN(10),
    STATUS_STARTED(11),
    STATUS_INPROGRESS(12);

    private final int status;

    Status(int aStatus) {
        this.status = aStatus;
    }

    public int getStatus() {
        return this.status;
    }

}

class StatusTest3 {

    public static void main(String[] args) {

        for (Status stat : Status.values()) {
            System.out.println(stat + " value is " + stat.getStatus());
        }
    }
}

Status.values() 返回什么？

输出是:

STATUS_OPEN value is 10
STATUS_STARTED value is 11
STATUS_INPROGRESS value is 12

Answer 1

http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html

All the constants of an enum type can be obtained by calling the implicit public static T[] values() method of that type.