Java 5.0 might prevent visitors having old browses from viewing my applet?

Question

I am using Java 5.0 to develop applets, but if I use all the possibilities that 5.0 version offers (such as enum) that means that clients viewing my applet must have JRE 5.0 as well. Does that mean a very recent browser will be required?
I found which browsers support Java 5.0 on the page
J2SE 5.0 "Supported System Configurations" at
http://java.sun.com/j2se/1.5.0/system-configurations.html
In short, what I take from there is that browsers required would be:
- Mozilla 1.4+
- Internet Explorer 5.5 (SP2+), 6.x on Windows platforms
- Netscape 4.7.x on Solaris 8 on SPARC and x86
- Netscape 7 and 7.1 are not offically supported, but should work
I have no idea how recent these versions are and whether it is acceptable to assume that web visitors will have these versions.
I appreciate some guidance here. In my country Internet is not so developped and I am affraid the applet won't run on visitors browsers.
Thank you.

Answer 1

I am using Java 5.0 to develop applets, but if I use
all the possibilities that 5.0 version offers (such
as enum) that means that clients viewing my applet
must have JRE 5.0 as well. Does that mean a very
recent browser will be required?no.
I found which browsers support Java 5.0 on the page
J2SE 5.0 "Supported System Configurations" at
http://java.sun.com/j2se/1.5.0/system-configurations.h
tml
In short, what I take from there is that browsers
required would be:
- Mozilla 1.4+
- Internet Explorer 5.5 (SP2+), 6.x on Windows
platforms
- Netscape 4.7.x on Solaris 8 on SPARC and x86
- Netscape 7 and 7.1 are not offically supported, but
should work
I have no idea how recent these versions are and
whether it is acceptable to assume that web visitors
will have these versions. I'd think it is almost safe to assume people have those, they're not that young. the question is rather "do they have the JRE 1.5.0?"