Error message - undefined variable or class:Console

I'm trying to compile a java program written by a lecturer but I get this message every time. I think I'm not importing something I should. Help?

It says that java doesn't know what Console is. Post relevant code and the exact error message for further help.

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    26/11/2012 22:01:08.000 kernel[0]: 6610.776653: vap-0: 6610.776 | ieee80211_vap_iter_beacon_miss: count=0 probe=1 beacon:716 ms, directed:62 ms, data:63 ms, ap_frame:62 ms, traffic_ind:672 ms, link:62 ms
    26/11/2012 22:01:08.000 kernel[0]: 6610.776661: vap-0: Less than minimal BMISS time, link:62 ms
    Doesn't look good but I've googled it and found nothing. Anyone know what it's about?
    Thanks :-)

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