add: cpp-programming-ques 06_operator friend 15

Author: webwithaman

06_operator_overloading_and_friend_function/15_overload_assignment.cpp

@@ -0,0 +1,86 @@
+// // Create a complex class and overload assignment operator for that class.
+
+// // Header files
+#include <iostream>
+#include <conio.h>
+
+// // use namespace
+using namespace std;
+
+// // define class Complex
+class Complex
+{
+
+private:
+    // // instance member variables
+    double real;
+    double imag;
+
+public:
+    // // constructors
+    Complex()
+    {
+        real = imag = 0;
+    }
+
+    Complex(double r)
+    {
+        real = imag = r;
+    }
+
+    Complex(double r, double i)
+    {
+        real = r;
+        imag = i;
+    }
+
+    // // instance member function to set compelx number
+    void setData(double r, double i)
+    {
+        real = r;
+        imag = i;
+    }
+
+    // // instance member function to display compelx number
+    void showData()
+    {
+        cout << "\n"
+             << real << " + " << imag << "i" << endl;
+    }
+
+    // // overload assignment (=) operator
+    Complex operator=(Complex c)
+    {
+        real = c.real;
+        imag = c.imag;
+        return c;
+    }
+};
+
+// // Main Function Start
+int main()
+{
+    double real, imag;
+
+    // // Get complex
+    cout << "\n>>>>>>>> Enter A Complex Number <<<<<<<<<\n";
+    cout << "\nEnter Real Part => ";
+    cin >> real;
+    cout << "\nEnter Imaginary Part => ";
+    cin >> imag;
+
+    Complex c1(real, imag), c2; // create objects of Complex
+    c2 = c1;                    // assign c1 to c2
+
+    // // display first complex number
+    cout << "\n>>>>>>>> First Complex Number <<<<<<<<<\n";
+    c1.showData();
+
+    cout << "\n>>>>>>>> Copy of Complex Number <<<<<<<<<\n";
+    c2.showData();
+
+    cout << endl; // Add new line
+    getch();
+    return 0;
+}
+// // Main Function End