https://blog.youkuaiyun.com/Miserables_zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/Miserables_/article/details/143373996https://blog.youkuaiyun.com/Miserables_/article/details/143373996Miserables_Wed, 30 Oct 2024 20:21:50 +08004 月份 星期 light 订单状态枚举类型的注意点1. 枚举类中的构造方法默认提供Private 类名(){}2. 最后一个枚举常量的后面有代码必加;3. 枚举之间，分隔4. 所有枚举常量的名字大写因为是final修饰的常量5. 枚举常量必须位于枚举类首行且连续6. 枚举类型有方法和属性。通过构造方法赋值private构造方法。]]>https://blog.youkuaiyun.com/Miserables_/article/details/143339419https://blog.youkuaiyun.com/Miserables_/article/details/143339419Miserables_Tue, 29 Oct 2024 19:04:46 +0800https://blog.youkuaiyun.com/Miserables_/article/details/143314371https://blog.youkuaiyun.com/Miserables_/article/details/143314371Miserables_Mon, 28 Oct 2024 23:04:11 +0800{}():要被覆盖的抽象方法的参数列表如果参数只有一个的话()可以省略{}：要被覆盖的抽象方法的方法体如果方法体中只有一条语句{}和；和 return省略lambda中的return取决于抽象方法的返回类型。]]>https://blog.youkuaiyun.com/Miserables_/article/details/143265497https://blog.youkuaiyun.com/Miserables_/article/details/143265497Miserables_Sun, 27 Oct 2024 10:45:29 +0800https://blog.youkuaiyun.com/Miserables_/article/details/143264688https://blog.youkuaiyun.com/Miserables_/article/details/143264688Miserables_Sun, 27 Oct 2024 10:08:23 +0800https://blog.youkuaiyun.com/Miserables_/article/details/143245668https://blog.youkuaiyun.com/Miserables_/article/details/143245668Miserables_Fri, 25 Oct 2024 23:05:09 +0800泛型-跟谁比较实现接口注定需要覆盖接口中的抽象方法@Overridepublic int compareTo(泛型 old){升序return 新的xx - 旧的xx 【基本数据类型】return 新的xx.compareTo(旧的xx)【引用数据类型】降序return 旧的xx - 新的xx;【基本数据类型】]]>https://blog.youkuaiyun.com/Miserables_/article/details/143242647https://blog.youkuaiyun.com/Miserables_/article/details/143242647Miserables_Fri, 25 Oct 2024 19:53:54 +0800https://blog.youkuaiyun.com/Miserables_/article/details/143192124https://blog.youkuaiyun.com/Miserables_/article/details/143192124Miserables_Wed, 23 Oct 2024 19:39:53 +0800https://blog.youkuaiyun.com/Miserables_/article/details/143111278https://blog.youkuaiyun.com/Miserables_/article/details/143111278Miserables_Mon, 21 Oct 2024 19:45:53 +0800https://blog.youkuaiyun.com/Miserables_/article/details/143080414https://blog.youkuaiyun.com/Miserables_/article/details/143080414Miserables_Sat, 19 Oct 2024 16:39:44 +0800https://blog.youkuaiyun.com/Miserables_/article/details/143055028https://blog.youkuaiyun.com/Miserables_/article/details/143055028Miserables_Fri, 18 Oct 2024 17:55:31 +0800https://blog.youkuaiyun.com/Miserables_/article/details/143017965https://blog.youkuaiyun.com/Miserables_/article/details/143017965Miserables_Thu, 17 Oct 2024 22:47:56 +0800 [a-z] 校验一位[a-z]{3} => [a-z] 校验长度是3 + 每一个字符必须是a-z[a-z]{3,5} => [a-z] 校验长度[3-5] + 每一个字符必须是a-z[a-z]{3,} => [a-z] 校验长度>=3 + 每一个字符必须是a-z。]]>https://blog.youkuaiyun.com/Miserables_/article/details/142989960https://blog.youkuaiyun.com/Miserables_/article/details/142989960Miserables_Wed, 16 Oct 2024 19:51:38 +0800https://blog.youkuaiyun.com/Miserables_/article/details/142964342https://blog.youkuaiyun.com/Miserables_/article/details/142964342Miserables_Tue, 15 Oct 2024 20:55:01 +0800https://blog.youkuaiyun.com/Miserables_/article/details/142961719https://blog.youkuaiyun.com/Miserables_/article/details/142961719Miserables_Tue, 15 Oct 2024 20:27:59 +0800https://blog.youkuaiyun.com/Miserables_/article/details/142928474https://blog.youkuaiyun.com/Miserables_/article/details/142928474Miserables_Tue, 15 Oct 2024 07:15:00 +0800https://blog.youkuaiyun.com/Miserables_/article/details/142928094https://blog.youkuaiyun.com/Miserables_/article/details/142928094Miserables_Tue, 15 Oct 2024 07:00:00 +0800https://blog.youkuaiyun.com/Miserables_/article/details/142926835https://blog.youkuaiyun.com/Miserables_/article/details/142926835Miserables_Tue, 15 Oct 2024 06:45:00 +0800https://blog.youkuaiyun.com/Miserables_/article/details/142926690https://blog.youkuaiyun.com/Miserables_/article/details/142926690Miserables_Mon, 14 Oct 2024 19:30:19 +0800https://blog.youkuaiyun.com/Miserables_/article/details/142925908https://blog.youkuaiyun.com/Miserables_/article/details/142925908Miserables_Mon, 14 Oct 2024 19:07:05 +0800