Using Showcase Sample widgets in my project

[Doruk Kangal]

Hi;
I'm just a beginner of GWT , so here's my question; i'm currently developping a project with GWT and i saw the sample site http://gwt.google.com/samples/Showcase/Showcase.html and i really liked the widgets so i would like to use this widgets in my projects as they are in showcase project..I have an idea to use them like ( but i'm not sure if it's the right way to do that.); -i imported the showcase project in Eclipse and i made it work. -with right click on the project -> export -> jar (Showcase.jar for example), i made the project like JAR file to use the widgets in my project. - i put the JAR file to var/lib folder of my project and added to my projects's classpath.

when i try to add widgets with RootPanel.get().add() and run , there were a lot of errors. in short, what i want to ask is there a way to use Showcase sample widgets in my project and is my way wrong to do that ?

Thanks in advance.