Assuming that I have written my own File class  and
placed them in com.vijay.File

To create a normal file Object the coode whould have
been
java.io.File normalFile = new java.io.File("some file
nane");

and to access the custome file class I will code  as
follows

com.vijay.File customeFile = new com.vijay.File("some
file name");