I recently installed a Redhat Linux9.0 with a VMware virtual machine and decided to play Java under Linux.
First install JDK, I downloaded 1.4.2 version of the RPM.bin security package from the Sun's website, first solving RPM, then install, OK in RPM.
Then modify the / etc / profile file, set the corresponding java_home / classpath / path, then execute Source / etc / profile, run Java, the result is wrong, the report is incorrect, said that the object class, halo, I don't know how to do it.
I haven't resolved for a long time, and finally I downloaded a 1.5 version of JDK again.
CHMOD A X JDK1.5
RPM-IV JDK1.5
Modify / etc / profile
Source / ETC / PROFILE
Java
Yes, a familiar picture, why 1.5 version is good and the 1.4.2 version is not.
Confusion, but 1.5 can use 1.5
