How to set path and create directory in cmd

Answer 1

setx path "%path%; C:\Program Files\Java\jdk1.6.0_27\bin;  to set the the path

Answer 2

if u r talking about creating package using CMD then first u have to write package package_name; in ur java code at the top..
and then save it as class_name.java
Now open CMD
and type javac –d . class_name.java

Answer 3

Question unclear, please elaborate