JDK1.5 just downloaded from Sun's website, file named JDK-1_5_0_02-Windows-i586-P.exe
But I used SDK1.4, file name is J2SDK-1_4_2_07-windows-i586-p.exe
However, the official name of JDK1.5 is J2SE 5.0.
And this change is not the first time, Java's 1.0 1.1 version is called JDK,
1.2 1.3 1.4 version is called SDK, and now it has changed back JDK.
I think reasonable calls should be JDK (Java Development Kit), do not turn to 5.0, because there is no 4.0
Horses and aging, steady development.
