SimpleBank

// SPDX-License-Identifier: MIT
pragma solidity 0.8.22;

contract Bank{

    address public accountholder;
    uint256 balance = 0;
    constructor()
    {
      accountholder = msg.sender;//one who will deploy the contract
    }

    function deposit() public payable  {
        require(msg.sender==accountholder,"you are not an account holder");
        require(msg.value>0,"deposit amount should be greater than 0.");

        balance += msg.value;
    }
    function withdraw() payable public
    {
        require(msg.sender==accountholder,"you are not an account holder");
        require(balance > 0,"You dont have enough balance.");

        payable(msg.sender).transfer(balance);
        balance=0;
    }
    function showBalance() public view returns(uint)
    {
        require(msg.sender==accountholder,"you are not an account holder");
        return balance;

    }


}