First Smart Contract Wallet

EtherWallet.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.24;

contract EtherWallet {
    address payable public owner;

    modifier onlyOwner {
        require(msg.sender == owner, "Only the owner can complete this opporation");
        _;
    }

    constructor(address payable _owner) {
        owner = _owner;
    }

    function send(address payable receiver, uint amount) public onlyOwner {
        receiver.transfer(amount);
    }

    function deposit() payable public {}

    function checkBalance() view public returns(uint) {
        return address(this).balance;
    }
}