alhamdulillah.thanks to these guys with the name of ninchagora and sebastian, my java is finish.partially.

"ans1 = ((((((a)*2 + b)*2 + c)*2 + d)*2 + e)*2 + f);
ans2 = ((((((a)*8 + b)*8 + c)*8 + d)*8 + e)*8 + f); "

this is the formula ive been looking forward to.thanks guys.

Peace Out.