Notes

Immutable variables are like constants. Values of immutable variables can be set inside the constructor but cannot be modified afterwards.

Code

Compile and deploy the code block below:

solidity
Immutable.sol
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

contract Immutable {
   // coding convention to uppercase constant variables
   address public immutable MY_ADDRESS;
   uint public immutable MY_UINT;

   constructor(uint _myUint) {
       MY_ADDRESS = msg.sender;
       MY_UINT = _myUint;
   }
}