Forward reference,very confused rules

[Shiva Mohan]

http://radio.javaranch.com/corey/2004/05/13/1084483439000.html

I don�t able to get the below three rules.Can anyone please explain each one as coding.

The declaration of a member needs to appear before it is used only if the member is an instance (respectively static) field of a class or interface C and all of the following conditions hold:

�The usage occurs in an instance (respectively static) variable initializer of C or in an instance (respectively static) initializer of C.
�The usage is not on the left hand side of an assignment.
�C is the innermost class or interface enclosing the usage.

[wise owen]

What are the forward reference rules?
There is an example to match rules.

[Shiva Mohan]

Thank you very much wise.This is what exactly i want.I have read that excellent explanation and got it easily.
Thanks again.