Update main.cpp

Rectangle/main.cpp

@@ -9,4 +9,10 @@ int main() {
     std::cout << "Area: " << rect.calculateArea() << std::endl;
     std::cout << "Perimeter: " << rect.calculatePerimeter() << std::endl;
 
+    rect.setLength(6.0);
+    rect.setWidth(4.0);
+
+    std::cout << "Length: " << rect.getLength() << std::endl;
+    std::cout << "Width: " << rect.getWidth() << std::endl;
+
     ##TODO
\ No newline at end of file