Java Enum

定义与使用

public enum Status {
    ERROR,
    SUCCESS;

    public static void main(String[] args){
        System.out.println(Status.ERROR.name());
    }
}

构造方法

public menu Status {
    ERROR(500, "错误"),
    SUCCESS(200， "成功!");

    private int code;
    private String message;
    private Status(int code, String message){
        this.code = code;
        this.message = message;
    }
}