Java常用的文档地址

https://docs.oracle.com/en/

https://docs.oracle.com/en/java/javase/13/   specifications--->language and VM

javase14-javase6 version: https://docs.oracle.com/javase/specs/index.html  

The Java Virtual Machine Specification, Java SE 13 Edition

 

docker: https://hub.docker.com/

reactive：https://spring.io/reactive

 

vps：linode.com  digitalocean.com  vultr.com 忍者云 佛跳墙 aws azure