Aaddy Token Code

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract myToken{
    mapping (address => uint256) public balanceOf;
    mapping (address => mapping(address => uint256)) public allowance;
    string public name = "Aaddy Token";
    string public symbol = "AAD";
    uint8 public decimals = 18;
    uint256 public totalSupply = 100000 * (10 ** decimals);

    event Transfer(address indexed _from , address indexed _to , uint256 _value);
    event Approval(address indexed _owner, address indexed _spender , uint256 _value);
    
    constructor() {
        balanceOf[msg.sender] = totalSupply;
        emit Transfer(address(0) , msg.sender , totalSupply);
    }

    function transfer(address _to, uint256 _value) public returns (bool success) {
        require(balanceOf[msg.sender] >= _value*(10**18) , "Not enough tokens.");
        balanceOf[msg.sender] -= _value*(10**18);
        balanceOf[_to] += _value*(10**18);
        emit Transfer(msg.sender , _to , _value);
        return true;
    } 

    function approve(address _spender , uint256 _value) public returns(bool success) {
        allowance[msg.sender][_spender] = _value;
        emit Approval(msg.sender , _spender , _value);
        return true;
    }

    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        require(allowance[_from][msg.sender] >= _value , "Value exceeds allowed value.");
        require(balanceOf[_from] >= _value , "Not enough tokens.");
        balanceOf[_from] -= _value;
        balanceOf[_to] += _value;
        allowance[_from][msg.sender] -= _value; 
        
        emit Transfer(_from, _to , _value);

        return true;
    }


}