Created
February 2, 2019 10:38
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Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.5.0+commit.1d4f565a.js&optimize=false&gist=
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pragma solidity ^0.5.0; | |
contract MessageStore { | |
string private _message; | |
address public _owner; | |
constructor() public{ | |
_owner = msg.sender; | |
} | |
function getMessage() public view returns (string memory){ | |
return _message; | |
} | |
function setMessage(string memory newMessage) public payable{ | |
require(msg.value == 3 ether); | |
_message = newMessage; | |
} | |
function getBalance() public view returns(uint){ | |
return address(this).balance; | |
} | |
modifier onlyOwner { | |
require(msg.sender == _owner); | |
_; | |
} | |
} |
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