Class, Classloader

hi, this is sandeep. I need berief points about Class and ClassLoader classes in java.lang package. Tell the purpose and where i can make use of these classes.
Please don't refer some other resource.
kindly explain me.
thank you.

Googling for "java classloading" will find quite a few introductory articles on the subject of class loading, most of which also touch on Class. Have you looked at the javadocs of java.lang.Class yet? Most of its methods are pretty well-described in what they do.