2019年7月30日
(Easy) To Lower Case LeetCode
摘要： Description Implement function ToLowerCase() that has a string parameter str, and returns the same string in lowercase. Example 1: Input: "Hello" Outp 阅读全文
posted @ 2019-07-30 23:09 CodingYM 阅读(88) 评论(0) 推荐(0)
(Easy) Jewels and Stones LeetCode
摘要： Description You're given strings J representing the types of stones that are jewels, and S representing the stones you have. Each character in S is a 阅读全文
posted @ 2019-07-30 22:41 CodingYM 阅读(128) 评论(0) 推荐(0)
Builder Design Pattern
摘要： Builder pattern builds a complex object using simple objects and using a step by step approach. This type of design pattern comes under creational pat 阅读全文
posted @ 2019-07-30 18:25 CodingYM 阅读(340) 评论(0) 推荐(0)
2019年7月29日
Facade Design Pattern
摘要： Facade pattern hides the complexities of the system and provides and interface to the client using which the client can access the system. This type o 阅读全文
posted @ 2019-07-29 15:36 CodingYM 阅读(258) 评论(0) 推荐(0)
Prototype Design Pattern
摘要： Before we proceed to Prototype Design Pattern, We need to review on Clone() method in Java. The Object cloning is a way to create exact copy of an obj 阅读全文
posted @ 2019-07-29 13:05 CodingYM 阅读(320) 评论(0) 推荐(0)
2019年7月26日
Decorator Design Pattern
摘要： Decorator pattern allows a user to add new functionality to an existing object without altering its structure. This type of design pattern comes under 阅读全文
posted @ 2019-07-26 18:29 CodingYM 阅读(178) 评论(0) 推荐(0)
Adapter Design Pattern
摘要： Adapter pattern works as a bridge between two incompatible interfaces. This type of design pattern comes under structural pattern. This pattern involv 阅读全文
posted @ 2019-07-26 15:52 CodingYM 阅读(458) 评论(0) 推荐(0)
2019年7月25日
Abstract Factory Design Pattern
摘要： Abstract Factory patterns work around a super-factory which creates other factories. This factory is also called as factory of factories. This type of 阅读全文
posted @ 2019-07-25 16:08 CodingYM 阅读(342) 评论(0) 推荐(0)
Factory Design Pattern
摘要： Factory pattern is one of the most used design patterns in Java. This type of design pattern comes under creational pattern. Below is the diagram on t 阅读全文
posted @ 2019-07-25 14:05 CodingYM 阅读(355) 评论(0) 推荐(0)
Singleton Design Pattern
摘要： This pattern involves a single class which is responsible to create an object while making sure that only single object gets created. This class provi 阅读全文
posted @ 2019-07-25 11:13 CodingYM 阅读(169) 评论(0) 推荐(0)