New to Java

HI evrybody,

i have j2se 1.5 version in my system.
and while doing a program on buffer reader ( I.O packege)
on an eclipse environment i found that the Word
"BufferedReader" got identified on the pad without importing package
for I.O..i.e the Java.IO.*

something struck my mind and i changed the Word by writing small "bufferedreader" and it didn'trecognized.. :)

Recognixtion was based on color change or from a warning being given while writing the programm..

please can you give any points as of y?? this word gets recognized

??? even without loading the package..this not only happens with

I.O..happens with collection packge too!!