add: cpp-programming-questions 06_operator_over_friend 20

Author: webwithaman

.vscode/settings.json

@@ -0,0 +1,10 @@
+{
+  "files.associations": {
+    "system_error": "cpp",
+    "array": "cpp",
+    "functional": "cpp",
+    "tuple": "cpp",
+    "type_traits": "cpp",
+    "utility": "cpp"
+  }
+}

06_operator_overloading_and_friend_function/16_logical_not_for_integer.cpp

@@ -15,7 +15,7 @@ class Integer
     int value;
 
 public:
-    // // Constructor
+    // // constructors
     Integer()
     {
         value = 0;

06_operator_overloading_and_friend_function/17_coordinate.cpp

@@ -15,7 +15,7 @@ class Coordinate
     int x, y, z;
 
 public:
-    // // Constructor
+    // // constructors
     Coordinate()
     {
         x = y = z = 0;

06_operator_overloading_and_friend_function/18_type_casting.cpp

@@ -15,7 +15,7 @@ class Integer
     int value;
 
 public:
-    // // Constructor
+    // // constructors
     Integer()
     {
         value = 0;

06_operator_overloading_and_friend_function/19_distance.cpp

@@ -15,7 +15,7 @@ class Distance
     double feet, inches;
 
 public:
-    // // Constructor
+    // // constructors
     Distance()
     {
         feet = inches = 0;

06_operator_overloading_and_friend_function/20_marks.cpp

@@ -0,0 +1,49 @@
+// // Create a class Marks that have one member variable marks and one member function that will print marks. We know that we can access member functions using (.) dot operator. Now you need to overload (->) arrow operator to access that function.
+
+// // Header files
+#include <iostream>
+#include <conio.h>
+
+// // use namespace
+using namespace std;
+
+// // define class Marks
+class Marks
+{
+private:
+    // // instance memeber variable
+    int marks;
+
+public:
+    // // constructors
+    Marks()
+    {
+        marks = 0;
+    }
+
+    Marks(int marks)
+    {
+        this->marks = marks;
+    }
+
+    // // instance member function to print marks
+    void printMarks()
+    {
+        cout << "\nMarks => " << marks;
+    }
+
+    // // overload member access operator (->)
+    void operator->()
+    {
+    }
+};
+
+int main()
+{
+
+    Marks m1(445); // create an object of Marks class
+
+    cout << endl; // Add new line
+    getch();
+    return 0;
+}