C++ Code

Author: sagargoswami2001

1.cpp

@@ -0,0 +1,23 @@
+//WAP to find factorial of a given number using recursion.
+#include<iostream>
+using namespace std;
+
+int factorial(int n);
+
+int main()
+{
+    int n;
+    cout<< "Enter an Positive Number: ";
+    cin>> n;
+
+    cout<< "Factorial of " << n << " = " << factorial(n);
+    return 0;
+}
+
+int factorial(int n)
+{
+    if (n>=1)
+        return n*factorial(n-1);
+    else
+        return 1;
+}

10.cpp

@@ -0,0 +1,32 @@
+//WAP create a class student take public data members roll no, name & age and enter these data from main function.
+#include<iostream>
+#include<string>
+using namespace std;
+
+class students
+{
+public:
+    string Name;
+    int rollno;
+    int age;
+
+    void displaydata()
+    {
+        cout<< "\nStudent Roll No.: "<<rollno << "\nStudent Name: "<<Name << "\nStudent Age: "<<age;
+    }
+};
+
+int main()
+{
+    students one;
+    cout<< "Enter Student Roll No.: ";
+    cin>> one.rollno;
+    cout<< "Enter Student Name: ";
+    cin>> one.Name;
+    cout<< "Enter Student Age: ";
+    cin>> one.age;
+
+    one.displaydata();
+
+    return 0;
+}

11.cpp

@@ -0,0 +1,38 @@
+//WAP to show working of parameterized constructor.
+#include<iostream>
+#include<string>
+//using namespace std;
+using std::string;
+using std::cout;
+using std::cin;
+
+class students
+{
+public:
+    string Name;
+    int rollno;
+    int age;
+
+    students(string x,int y,int z);
+
+    void displaydata()
+    {
+        cout<< "\n\nStudent Roll No.: "<<rollno << "\nStudent Name: "<<Name << "\nStudent Age: "<<age;
+    }
+};
+
+students::students(string x,int y,int z)
+{
+    Name = x;
+    rollno = y;
+    age = z;
+}
+
+int main()
+{
+    students one("Sagar", 40, 20 ),two("Mohit", 27, 20 );
+    one.displaydata();
+    two.displaydata();
+
+    return 0;
+}

12.cpp

@@ -0,0 +1,43 @@
+//WAP to copy value of 2 parameters from one constructor to another using copy constructor.
+#include<iostream>
+#include<string>
+using namespace std;
+
+class students
+{
+public:
+    int a,b;
+    students() //Default Constructor
+    {
+        a=0;
+        b=0;
+    }
+    students(int x,int y) //1st Constructor
+    {
+        a=x;
+        b=y;
+    }
+    students(students & object) //Copy Constructor
+    {
+        cout<< "\nCopy Constructor Called";
+        a=object.a;
+        b=object.b;
+    }
+    void displaydata()
+    {
+        cout<< "\nA: "<< a <<"\nB: "<< b <<"\n";
+    }
+};
+
+int main()
+{
+    students one;
+    students two(2,3);
+
+    //one.displaydata();
+    two.displaydata();
+
+    students s1(two);
+    s1.displaydata();
+    return 0;
+}

13.cpp

@@ -0,0 +1,41 @@
+//WAP to implementing an array of objects in a class using member functions to input & display data.
+#include<iostream>
+using namespace std;
+
+class employee
+{
+private:
+    int id;
+    int age;
+    float salary;
+
+public:
+    void displaydata(int i);
+    void setdata(int i)
+    {
+        cout<< "Enter "<< i <<" Employee ID: ";
+        cin>> id;
+        cout<< "Enter "<< i <<" Employee Age: ";
+        cin>> age;
+        cout<< "Enter "<< i <<" Employee Salary: ";
+        cin>> salary;
+    }
+};
+
+    void employee:: displaydata(int i)
+    {
+        cout<< "\nEmployee " << i <<" ID: " << id <<" \nAge: " << age <<" \nSalary: " << salary <<"\n\n";
+    }
+
+    int main()
+    {
+        int i;
+        employee one[4];
+
+        for(i=1;i<=4;i++)
+        {
+            one[i].setdata(i);
+            one[i].displaydata(i);
+        }
+        return 0;
+    }

14.cpp

@@ -0,0 +1,33 @@
+//WAP to print sum of elements above the diagonal elements in a matrix of 3*3 elements.
+#include<iostream>
+using namespace std;
+
+int main()
+{
+    int i,j,sumofdiagonal;
+
+    int a[3][3]={1,2,3,
+                 4,5,6,
+                 7,8,9};
+
+    sumofdiagonal=0;
+
+    for(i=0;i<3;i++)
+    {
+        cout<< '\n';
+        for(j=0;j<3;j++)
+        {
+            if(i==0&&j==0)
+            {
+                sumofdiagonal=a[0][0];
+            }
+            else if(j >= i)
+            {
+                sumofdiagonal=sumofdiagonal+a[i][j];
+                a[i][j]=a[i][j+1];
+            }
+        }
+    }
+    cout<< "Sum of Upper Diagonal Elements Are: ";
+    cout<< sumofdiagonal;
+}

15.cpp

@@ -0,0 +1,48 @@
+/*WAP to show one class students having data member roll no, name & age.
+Inherits some features of teacher, when inherited public-ally.*/
+#include<iostream>
+#include<string>
+using namespace std;
+
+class teacher
+{
+public:
+    char sagar(char mohit)
+    {
+        cout << "\n\nEnter Teacher's Initials: ";
+        cin >> mohit;
+        cout << "Teacher's Initials: ";
+        cout << mohit;
+    }
+};
+
+class students: teacher
+{
+public:
+    string name;
+    int roll_no;
+    int age;
+
+    void displaydata(char mohit)
+    {
+        cout << "\nStudent Roll No.: "<< roll_no << "\nStudent Name: "<< name << "\nStudent Age: "<< age;
+        sagar(mohit);
+    }
+};
+
+int main()
+{
+    char mohit;
+
+    students one;
+    cout<< "Enter Student Roll No.: ";
+    cin>> one.roll_no;
+    cout<< "Enter Student Name: ";
+    cin>> one.name;
+    cout<< "Enter Student Age: ";
+    cin>> one.age;
+
+    one.displaydata(mohit);
+
+    return 0;
+}

16.cpp

@@ -0,0 +1,58 @@
+//WAP for implementing multiple inheritance concept using classes.
+#include<iostream>
+#include<string>
+using namespace std;
+
+class teacher
+{
+public:
+    char sagar(char mohit)
+    {
+        cout << "\n\nEnter Teacher's Initials: ";
+        cin >> mohit;
+        cout << "Teacher's Initials: ";
+        cout << mohit;
+    }
+};
+
+class chor
+{
+public:
+    void prince()
+    {
+        cout<< "\n\nSagar is a Bad Boy";
+    }
+};
+
+class students: teacher,chor
+{
+public:
+    string name;
+    int roll_no;
+    int age;
+
+    void displaydata(char mohit)
+    {
+        cout << "\nStudent Roll No.: "<< roll_no << "\nStudent Name: "<< name << "\nStudent Age: "<< age;
+        sagar(mohit);
+        prince();
+    }
+};
+
+int main()
+{
+    char mohit;
+
+    students one;
+    cout<< "Enter Student Roll No.: ";
+    cin>> one.roll_no;
+    cout<< "Enter Student Name: ";
+    cin>> one.name;
+    cout<< "Enter Student Age: ";
+    cin>> one.age;
+
+    one.displaydata(mohit);
+
+    return 0;
+}
+

17.cpp

@@ -0,0 +1,42 @@
+//WAP to overload a binary operator ‘+’ to add two values using objects.
+#include<iostream>
+using namespace std;
+
+class imaginary
+{
+private:
+    int a;
+    int b;
+
+public:
+    imaginary(int v1)
+    {
+        b=v1;
+    }
+    void operator+(imaginary obj1)
+    {
+        a = b + obj1.b;
+    }
+    void printdata(int i)
+    {
+        cout<< "Your imaginary No." << i << " " << b << "i\n";
+    }
+    void printcomplexsum()
+    {
+        cout<< "Sum of Your Complex No. " << a << "i\n";
+    }
+};
+
+int main()
+{
+    imaginary obj0(2),obj1(4);
+
+    obj0.printdata(0);
+
+    obj1.printdata(1);
+
+    obj0+obj1;
+    obj0.printcomplexsum();
+
+    return 0;
+}