Friend Function

OOP/FriendFunction.cpp

@@ -0,0 +1,28 @@
+#include <iostream>
+using namespace std;
+
+class abc{
+    int x,y;
+    public:
+        void getData(int n1,int n2){
+            x=n1;   y=n2;
+        }
+        void print(){
+            cout<<"x is: "<<x<<endl<<"y is: "<<y<<endl;
+        }
+        friend void addData(abc);
+};
+
+//As it's a friend function we don't need to write like void abc:: addData...something like that..
+//it can be declared without any scope operator
+void addData(abc obj){
+    cout<<"Addition is: "<< obj.x + obj.y<<endl;
+}
+
+int main() {
+    abc obj1;
+    obj1.getData(2,3);
+    obj1.print();
+    addData(obj1);  //don't need to write obj.addData(), as it is a friend function
+    return 0;
+}