CPU mining not recommended because of high difficulty
 
 minerd -o stratum+tcp://unomp.btcminers.info:2001 -u Javacoin_address -p x --threads N

  where N number of thread/logical cpu wanted to be used.

 
  GPU mining

  Using sgminer

  Depends on GPU but in general in *.bat file

  For AMD
  setx GPU_FORCE_64BIT_PTR 0
  setx GPU_MAX_HEAP_SIZE 100
  setx GPU_USE_SYNC_OBJECTS 1
  setx GPU_MAX_ALLOC_PERCENT 100
  setx GPU_SINGLE_ALLOC_PERCENT 100

  sgminer --gpu-platform 1 -g 1 -w 128 -I 19 --shaders 1280  --thread-concurrency 20480 --no-submit-stale -o stratum+tcp://unomp.btcminers.info:2001  -O your_javacoin_address:x
  

 For Nvidia
 sgminer -I 15 --thread-concurrency 5760 -w 128 --no-submit-stale -o stratum+tcp://unomp.btcminers.info:2001 -O your_javacoin_address:x

 the values of parameters -I , --thread-concurrency, -w etc again depends on your GPU

 Change port to adjust difficulty :

    [Port: 2001 > Diff: 8]
    [Port: 2002 > Diff: 32768]
    [Port: 2003 > Diff: 655360]

 Good Luck