add: cpp-programming-questions

Author: webwithaman

11_new_and_delete/00_questions.txt

@@ -12,3 +12,4 @@
 
 04. Define a class representing a student with attributes like name and roll number. Dynamically create an array of student objects based on user input for the number of students. Allow the user to input details for each student, display their information, and then use delete to free the memory.
 
+05. Demonstrate the use of new operator with reference variable in cpp.

11_new_and_delete/02_matrix.cpp

@@ -50,7 +50,7 @@ int main()
         for (int j = 0; j < cols; j++)
             cout << left << setw(4) << matrix[i][j];
 
-        putch(10); // // Add New line
+        cout << endl; // // Add New line
     }
 
     // // Transpose of Matrix
@@ -60,7 +60,7 @@ int main()
         for (int j = 0; j < rows; j++)
             cout << left << setw(4) << matrix[j][i];
 
-        putch(10); // // Add New line
+        cout << endl; // // Add New line
     }
 
     // // deallocate dynamically allocated memory

11_new_and_delete/05_new_with_reference.cpp

@@ -0,0 +1,38 @@
+// // Demonstrate the use of new operator with reference variable in cpp
+
+// // Header files
+#include <iostream>
+
+// // use namespace
+using namespace std;
+
+// // define class A
+class Hello
+{
+
+public:
+    // // instance member function to print hello
+    void printHello()
+    {
+        cout << "\nHello";
+    }
+
+    operator Hello *()
+    {
+        return (*this);
+    }
+};
+
+// // Main Function Start
+int main()
+{
+    // // create an reference obejct of class Hello
+    Hello &h1 = *(new Hello);
+
+    h1.printHello();
+
+    cout << endl; // Add new line
+    cin.ignore();
+    return 0;
+}
+// // Main Function End