YourContract.sol

YourContract.sol

pragma solidity >=0.8.0 <0.9.0;
//SPDX-License-Identifier: MIT

import "hardhat/console.sol";
// import "@openzeppelin/contracts/access/Ownable.sol"; 
// https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol

contract YourContract {

  event SetPurpose(address sender, string purpose);

  string public purpose = "Building Unstoppable Apps!!!";
  uint public korr = 10 ether; // 10 * 10 ** 18 wei
  uint public korr2 = 10; // 10 wei

  uint private korr3 = 125;

  constructor() payable {
    // what should we do on deploy?
  }

  function getKorr3() public view returns(uint) {
    return korr3;
  }

  function getPlusProduct() public view returns(uint) {
    return korr + korr2;
  }

  function setKorr(uint _korr) public {
    korr = _korr;
  }

  function setKorr2(uint _korr2) public {
    korr2 = _korr2;
  }

  function setPurpose(string memory newPurpose) public {
      purpose = newPurpose;
      console.log(msg.sender,"set purpose to",purpose);
      emit SetPurpose(msg.sender, purpose);
  }

  // to support receiving ETH by default
  receive() external payable {}
  fallback() external payable {}
}