From 29740dc80d8acf6e68d3a76c5a0edb0351722d4a Mon Sep 17 00:00:00 2001
From: arlbibek <53701945+arlbibek@users.noreply.github.com>
Date: Fri, 5 Mar 2021 17:46:42 +0545
Subject: [PATCH] Made tutorial 2 work with the Solidity ^0.7.0 version

title self-explanatory
---
 tutorial-02/myfirstcontract.sol | 34 ++++++++++++++-------------------
 1 file changed, 14 insertions(+), 20 deletions(-)

diff --git a/tutorial-02/myfirstcontract.sol b/tutorial-02/myfirstcontract.sol
index f94fce1..3f63618 100644
--- a/tutorial-02/myfirstcontract.sol
+++ b/tutorial-02/myfirstcontract.sol
@@ -1,57 +1,51 @@
-pragma solidity ^0.5.0;
+pragma solidity ^0.7.0;
 
-interface Regulator {
+interface Regulator{
     function checkValue(uint amount) external returns (bool);
     function loan() external returns (bool);
 }
 
 contract Bank is Regulator {
     uint private value;
-    
-    constructor(uint amount) public {
+
+    constructor(uint amount) {
         value = amount;
     }
-    
     function deposit(uint amount) public {
         value += amount;
     }
-    
     function withdraw(uint amount) public {
         if (checkValue(amount)) {
-            value -= amount;
+        value -= amount;
         }
     }
-    
     function balance() public view returns (uint) {
         return value;
     }
-    
-    function checkValue(uint amount) public returns (bool) {
+    function checkValue(uint amount) override view public returns (bool) {
         // Classic mistake in the tutorial value should be above the amount
         return value >= amount;
     }
-    
-    function loan() public returns (bool) {
+    function loan() override view public returns (bool) {
         return value > 0;
     }
 }
 
-contract MyFirstContract is Bank(10) {
+// Tutorial 01
+contract myFirstContract is Bank(10) {
+
     string private name;
     uint private age;
-    
+
     function setName(string memory newName) public {
         name = newName;
     }
-    
-    function getName() public view returns (string memory) {
-        return name;
-    }
-    
     function setAge(uint newAge) public {
         age = newAge;
     }
-    
+    function getName() public view returns (string memory) {
+        return name;
+    }
     function getAge() public view returns (uint) {
         return age;
     }