This is a contract used to make a list of people or groups regarded as unacceptable or untrustworthy and often marked down for punishment or exclusion.
addToBlacklist lets the owner add an address to the blacklist
|addr||address||the address to be added to the list|
removeFromBlacklist lets the owner remove an address to the blacklist
|addr||address||the address to be removed to the list|
renounceOwnership Allows the current owner to relinquish control of the contract.
transferOwnership Allows the current owner to transfer control of the contract to a newOwner.
|newOwner||address||the address to transfer ownership to|
isBlacklisted shows the details (number of rooms, price per room and booked rooms) for a hotel from the list
|addr||address||check if the address is the blacklist|
isBlacklisted true if
msg.sender is the owner of the contract.
owner returns the owner address