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Test2.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

contract EtherConverter {
    uint256 public weiFactor = 10**18; // Conversion factor from ether to wei
    uint256 public gweiFactor = 10**9; // Conversion factor from ether to gwei
    
    function etherToWei(uint256 _etherValue) public view returns (uint256) {
        return _etherValue * weiFactor;
    }
   function etherToEther(uint256 _etherValue) public view returns (uint256) {
        return _etherValue; 
    }
    function etherToGwei(uint256 _etherValue) public view returns (uint256) {
        return _etherValue * gweiFactor;
    }
}

Primitive Data Types in Solidity
Challenge
Write a smart contract that takes some ether from the user. Find out its value in units of:

wei
ether
gwei