What damage is one last hit

i want to give player pickaxe with one more use whats the damage for it

 

Please explain more...

 

its a number setDamage()

 

You could start with a new item, use Item->getMaxDurability(), subtract 1, then use Item->applyDamage() to get an item with 1 durability. If you have an item with the Unbreaking enchantment, it could have more than one use, I believe.

 

i have unbreaking enchantments, what should i do with that

 

Oh, easier method. Item->setDamage(Item->getMaxDurability() - 1). That should ignore Unbreaking.