Contract Source Code:
File 1 of 1 : AFKERC20
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
contract AFKERC20 is IERC20 {
string public constant name = "Afk";
string public constant symbol = "AFK";
uint8 public constant decimals = 18;
uint256 private _totalSupply = 47000000 * (10 ** uint(decimals));
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
address public owner;
modifier onlyOwner() {
require(msg.sender == owner, "Caller is not the owner");
_;
}
constructor() {
owner = msg.sender;
_balances[owner] = _totalSupply;
emit Transfer(address(0), owner, _totalSupply);
}
function totalSupply() public view override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}
function allowance(address tokenOwner, address spender) public view override returns (uint256) {
return _allowances[tokenOwner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, msg.sender, _allowances[sender][msg.sender] - amount);
return true;
}
// Allows the current owner to relinquish control of the contract.
function renounceOwnership() public onlyOwner {
emit OwnershipTransferred(owner, address(0));
owner = address(0);
}
// Internal function to transfer token from one address to another.
function _transfer(address sender, address recipient, uint256 amount) internal {
require(sender != address(0), "Transfer from the zero address");
require(recipient != address(0), "Transfer to the zero address");
require(_balances[sender] >= amount, "Transfer amount exceeds balance");
_balances[sender] -= amount;
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
}
// Internal function to approve spender by the owner.
function _approve(address tokenOwner, address spender, uint256 amount) internal {
require(tokenOwner != address(0), "Approve from the zero address");
require(spender != address(0), "Approve to the zero address");
_allowances[tokenOwner][spender] = amount;
emit Approval(tokenOwner, spender, amount);
}
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
}