EvanMeetTheWorld

摘要： https is http with encryption. Https use SSL to encrypt normal htt... 阅读全文

posted @ 2020-10-30 02:29 EvanMeetTheWorld 阅读(26) 评论(0) 推荐(0)

摘要：虚点线是接口虚线是抽象类实线是普通类从图中可以看出来 Map, List, Set, Queue都是接口而stack, a... 阅读全文

posted @ 2020-10-30 02:29 EvanMeetTheWorld 阅读(14) 评论(0) 推荐(0)

摘要： Why HashTable doesn’t allow null and HashMap does? To successfully... 阅读全文

posted @ 2020-10-30 02:27 EvanMeetTheWorld 阅读(16) 评论(0) 推荐(0)

摘要： reference: https://www.geeksforgeeks.org/comparable-vs-comparator-... 阅读全文

posted @ 2020-10-29 10:16 EvanMeetTheWorld 阅读(10) 评论(0) 推荐(0)

摘要：为什么要设置这两个看起来没有用的东西？因为这两个东西是非常有用的有用在哪呢？有用在给我们的类的属性变量加上锁使得不是谁想拿就拿... 阅读全文

posted @ 2020-10-29 10:16 EvanMeetTheWorld 阅读(36) 评论(0) 推荐(0)

摘要： It’s a very important principle in OOP. Single responsibility : ev... 阅读全文

posted @ 2020-10-29 10:16 EvanMeetTheWorld 阅读(19) 评论(0) 推荐(0)

摘要： Indexing is a data structure that store all the values of a column... 阅读全文

posted @ 2020-10-29 10:15 EvanMeetTheWorld 阅读(41) 评论(0) 推荐(0)

摘要： Stream is the enhancement of Collection package, it focuses on pro... 阅读全文

posted @ 2020-10-29 10:15 EvanMeetTheWorld 阅读(13) 评论(0) 推荐(0)

摘要： Extend thread class, implement runnable or callable interface ... 阅读全文

posted @ 2020-10-29 10:15 EvanMeetTheWorld 阅读(11) 评论(0) 推荐(0)

摘要： It’s a protocol that can make hyper text from server to web browse... 阅读全文

posted @ 2020-10-29 10:14 EvanMeetTheWorld 阅读(17) 评论(0) 推荐(0)