Request Java Code

Can someone code something in java for me please???

Since some grand bosses need quest and quests dont work in frozen , i created npcs with Bosses' template IDs and stats and i will spawn them like this ( //spawn 1 00000000000 ) 

I typed the IDs of those bosses in Bossmanager instance ( not frozen's boss manager ) , but it doesnt work , so i need something like this below...

A code which will be announcing 3,2,1 hour(s) before the spawn of any boss of these and at the exact time of the spawn!!!

If someone can do it , add me on skype Anestiss18

Thanks in advance!