Basic_CRUD.sol

pragma solidity ^0.5.0;

contract CRUD{
    struct User{
        uint id;
        string name;
    }

    User[] public users;
    uint public nextId=1;

    function create(string memory name) public {
        users.push(User(nextId,name));
        nextId++;
    }

    function read(uint id) view public returns(uint,string memory){
        uint i = find(id);
        return (users[i].id, users[i].name); 
    }

    function update(uint id, string memory name) public {
        uint i = find(id);
        users[i].name=name;
    }

    function destroy(uint id) public {
        uint i = find(id);
        delete users[i];
        
    }

    function find(uint id) view internal returns(uint) {
        for(uint i=0; i<users.length;i++){
            if(users[i].id==id){
                return i;
            }
        }
        revert('User does not exist!');
    }




}