Mastering Blockchain Programming with Solidity

Ether can be sent forcibly to a contract

While writing a contract, you can define a payable fallback function to accept ether in your contract, as follows:

function() external payable {    }

If this fallback function is not present in a contract and it does not have the payable modifier for any function, then your contract is not meant to receive ether.

However, there is still a possible way to send ether to a contract that does not accept ether. This is possible via a selfdestruct function call:

• Let's assume there is a contract x that has some ether present in it.
• Also, there is a contract y.
• Contract x calls the selfdestruct(address_Of_ContractY) function.
• This process sends all ether present in contract x to contract y, even if contract ...