output "hello world!" bu AdamLai
Merge branch 'master' of https://github.com/ootutor/hello-world

Conflicts:
	hello-world/src/firstclass.java
Merge branch 'master' of https://github.com/ootutor/hello-world
just commited
Merge branch 'master' of https://github.com/ootutor/hello-world