Hi,
Can any1 plz tell me about the pattern,timeline for exam,which book is more beneficial for me to clear the ocjp exam

and plz let me know from where to buy the voucher and price of the voucher.

to know the pattern of the exam is like the simulators . There are many simulators on the net , download them and train yourself on them , about the price it differs from country to another . some are 300USD others like EGYPT only 125USD .