Introduction to Smart Contract: Lecture 8b

Question 1

Smart Contract Example

Answer 1

pragma solidity ^0.4.24

Contract Muffin {
uint private people = 0;

   function eats() public"public,private,external,internal" "view,pure" returns (uint) {
      people = people + 1
      return people;
   }
}

eat()

Question 2

Payable

Answer 2

Where wallet is an Ethereum wallet or contract address:
wallet.transfer(value);

Find out balance in wallet:
address a = 0x0
uint balanceA = a.balance;