Java API 高级使用

Administrator 发布于 2023-11-17

Cron 表达式

{Seconds} {Minutes} {Hours} {DayofMonth} {Month} {DayofWeek} {Year}或

Administrator 发布于 2023-09-19

String Best Practise

Administrator 发布于 2023-07-13

Poi Theory

Administrator 发布于 2023-07-13

nohup 2>&1 & Best Practise

Administrator 发布于 2023-07-03

Java Executor Theory

ThreadPoolExecutor分析ThreadPoolExecutor继承自AbstractExecutorService，也是实现了ExecutorService接口。几个重要的字段private final AtomicInteger ctl = new AtomicInteger(ctl

Administrator 发布于 2023-05-24

Java Fundemental Feature II

Administrator 发布于 2023-05-24

Java Charset Zone LocalDateTime Best Practise

CharSetjava.nio.charset.StandardCharsets#UTF_8 // 根据字符串，获取枚举值 Charset.forName("UTF-8") Charset charset = Charset.forName("UTF

Administrator 发布于 2023-02-06

Java 8 Lambada & Functional Interface

Administrator 发布于 2023-01-16

Java Fundemental Feature

hashcode equal ==的联系/区别1.首先，默认情况下，Object类型的对象，hashcode的值与 存储地址有关，多次new对象，即使字段、属性一致，hashcode也不一致；默认情况下，equals比较的也是 存储地址Object:public boolean equals(Obj

Administrator 发布于 2023-01-16