[ControlFlow-Solidity]#controlFlow

controlFlow.sol

//Control Flow  (if, else)
pragma solidity 0.7.5;

contract HelloWorld {
    // state variables
    string message ; // message will have the value of _message
    
    constructor(string memory _message){
        message = _message;
    }

    function hello() public view returns(string memory){
        if (msg.sender == 0x5B38Da6a701c568545dCfcB03FcB875f56beddC4){
            return message;
            
        } else {
            return "wrong address";
        }
        
        
    }
 }