basic java question - and flash player

[david]

YDLers,

By default both browsers, Konqueror (kde) and Mozilla (gnome) are configured 
to support java enabled websites [settings -> configure konqueror -> File 
associations -> x-java] but neither do. (java interperter disabled - > error 
message)  How do i enable the java interpreter? 

Also i tried to download (and sucessfully installed, i thought) a flash 
player recently from the macromedia site and this is what happens when i try 
to run Mozilla now:

[davidwri@RR davidwri]$ mozilla &
[1] 2571
[davidwri@RR davidwri]$ LoadPlugin: failed to initialize shared library 
/usr/lib/mozilla/plugins/libflashplayer.so 
[/usr/lib/mozilla/plugins/libflashplayer.so: ELF file data encoding not 
big-endian]
LoadPlugin: failed to initialize shared library 
/usr/lib/mozilla/plugins/ShockwaveFlash.class 
[/usr/lib/mozilla/plugins/ShockwaveFlash.class: invalid ELF header]

It will run but will not, obviously load the plugins, are they only supposed 
be plugins for Netscape? that was the suggested browser, i though netscape 
was "based" on Mozilla.

Also on a Java elated note, i would like to start learning java what would 
someone recommend? Is it as "simple" as installing the IBM Java package (The 
IBM Developer Kit for Linux) from the "bonus" cd's that comes with the 
standard YDL distro? 
http://www-106.ibm.com/developerworks/java/jdk/linux130/.  

Thanks for all your help.