Adding code.

.vscode/settings.json

@@ -20,7 +20,7 @@
   "window.commandCenter": false,
   "screencastMode.onlyKeyboardShortcuts": true,
   "terminal.integrated.fontSize": 18,
-  "workbench.colorTheme": "Visual Studio Dark",
+  "workbench.colorTheme": "Visual Studio Dark - C++",
   "workbench.fontAliasing": "antialiased",
   "C_Cpp.codeAnalysis.clangTidy.enabled": true,
   "workbench.statusBar.visible": true,

src/Ch00/CodeDemo.cpp

@@ -1,7 +1,7 @@
 // Learning C++ 
 // Exercise 00_03
 // Using the exercise files on GitHub, by Eduardo Corpeño 
-
+// Hello world
 #include <iostream>
 
 int main(){

src/Ch01/01_02b/CodeDemo.cpp

@@ -1,3 +1,12 @@
 // Learning C++ 
 // Exercise 01_02
 // Hello World, by Eduardo Corpeño 
+
+#include <iostream>
+
+int main(){
+    std::cout << "Hi there!" << std::endl;
+
+    std::cout << std::endl << std::endl;
+    return(0);
+}

src/Ch01/01_03/CodeDemo.cpp

@@ -7,8 +7,9 @@
 
 int main(){
     std::string str;
+    std::cout << "Enter your name: " << std::flush;
     std::cin >> str;
-    std::cout << str;
+    std::cout << "Its nice to meet you, " << str << "!" << std::endl; 
 
     std::cout << std::endl << std::endl;
     return (0);