need make utility for java

I've a lot of projects which I need to compile , it all has Makefiles,
but my Java is on Win32 system and I don't have make utility on my system.
Where can I download a make util that will understand my Makefiles ?
Btw , is there a "solid standard" for makefiles ?

Check www.gnu.org. All the unix utilities (including make, awk, grep, vi etc..) are available for Windoze.(Why do u use that?)
U can seamlessly compile with all ur Makefiles
with small changes.

Cheers,

Parag