send parameter to class

hi all

i send parameter to argument in class and want to use it in other methods of class, but my variables in ClassDeclaration  does not be recognized in Main method and rise this error that variable has not been declared.

 static void main(Args _args)

{

    .

.

.

    ClassDeclarationVariable=_args.parm();

.

.

.

}

please help me

thanks