Trying to Create Instance by Using String name i.e a class name bt GetType method returns null

Trying to Create Instance by Using String name i.e a class name bt GetType
method returns null

References

Reference NO 1

http://stackoverflow.com/questions/13584083/trying-to-create-instance-by-using-string-name-i-e-a-class-name-bt-gettype-metho

Reference NO 2

http://stackoverflow.com/questions/3262168/converting-strings-to-class-names-in-c-sharp

Reference NO 3

http://php.net/manual/en/function.get-class.php

Reference NO 4

http://svn.codehaus.org/janino/tags/V_2_3_0/janino/src/org/codehaus/janino/Java.java

Reference NO 5

https://svn.jenkins-ci.org/tags/hudson-1_279/core/src/main/java/hudson/model/Descriptor.java

Reference NO 6

http://www.theswamp.org/index.php?topic=31859.5;wap2

Reference NO 7

http://www.solutionoferror.com/asp-net/inputstream-from-a-local-file-vb-net-114212.asp

Reference NO 8

http://code.google.com/p/javaparser/wiki/UsingThisParser