// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
contract Payable { // Payable address can receive Ether address payable public owner; // Payable constructor can receive Ether constructor() payable { owner = payable(msg.sender); } // Function to deposit Ether into this contract. // Call this function along with some Ether. // The balance of this contract will be automatically updated. function deposit() public payable {} // Call this function along with some Ether. // The function will throw an error since this function is not payable. function notPayable() public {} // Function to withdraw all Ether from this contract. function withdraw() public { // get the amount of Ether stored in this contract uint amount = address(this).balance; // send all Ether to owner // Owner can receive Ether since the address of owner is payable (bool success, ) = owner.call{value: amount}(""); require(success, "Failed to send Ether"); } // Function to transfer Ether from this contract to address from input function transfer(address payable _to, uint _amount) public { // Note that "to" is declared as payable (bool success, ) = _to.call{value: _amount}(""); require(success, "Failed to send Ether"); }
}