házi javítás1

Niki_homework_1.sol

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+// SPDX-License-Identifier: GPL-3.0-or-later
+pragma solidity ^0.8.11;
+
+contract Cakery {
+
+    uint256 public cakeportfolio;
+    address public admin;
+    uint256 public fixedcosts;
+    uint256 public variablecosts;
+    uint256 public soldqty;
+    uint256 public price;
+    uint256 private income;
+    string private correct_password;
+    mapping (uint256 => string) internal idToHash;
+    mapping (uint256 => address) internal idToOwner;
+
+
+    constructor() {
+        cakeportfolio = 10;
+        fixedcosts = 50;
+        variablecosts = 30 * 20;
+        soldqty = 30;
+        price = 100;
+        income = soldqty * price;
+        admin = msg.sender;
+    }
+
+    function showincome () public view returns (uint256) {
+        return income;
+    } 
+    
+    function showvariablecost () public view returns (uint256) {
+        return variablecosts;
+    }
+    
+    function showprice () public view returns (uint256) {
+        return price;
+    }
+
+    function transfer(uint256 _tokenId, address _toAddress) external {
+        require(msg.sender == idToOwner[_tokenId]);
+        idToOwner[_tokenId] = _toAddress;
+
+    } }