I had successfully installed Maven in my machine , and used this command and this in process of building for a long time .
mvn archetype:create -DgroupId=com.mycompany.app -DartifactId=my-app
from command line . But i don't understand what is the meaning of this command and what it will do . Please tell what is happening here.
The "long time" part is a one-time issue. One of Maven's greatest strengths is its ability to download and cache copies of all the resources needed to do a Maven build. I have one project where 1.5MB of project ends up building a 30+MB distributable. But downloading those other 28.5MB over my fairly slow Internet connection takes time when doing that first build. Subsequent builds are MUCH faster!
An IDE is no substitute for an Intelligent Developer.