C++ Excellant pro

Provides an example to return an object from a function in C++ Programming

#include

#include

class data1

{

    public:

        int a,b;

        void get1();

};

class data2

{

    public:

        int c,d;

        void get2();

};

class data3

{

    int x,y;

    void show();

    public:

        void sum(data1,data2);

};

int main()

{

    clrscr();

    data1 d1;

    data2 d2;

    data3 d3;

    d1.get1();

    d2.get2();

    d3.sum(d1,d2);

}

void data1::get1()

{

    cout<<"Enter for a: ";

    cin>>a;

    cout<<"Enter for b: ";

    cin>>b;

}

void data2::get2()

{

    cout<<"Enter for c: ";

    cin>>c;

    cout<<"Enter for d: ";

    cin>>d;

}

void data3::sum(data1 a1,data2 a2)

{

    x=a1.a+a2.c;

    y=a1.b+a2.d;

    show();

}

void data3::show()

{

    cout<<"X= "<

    cout<<"Y= "<

}

Passing objects to function using call by reference method in C++

#include

#include

class data2;

class data1

{

    int a;

    public:

    void get(int no)

    {

        a=no;

    }

    friend void swap(data1 &, data2 &);

    void show()

    {

        cout<<"a= "<

    }

};

class data2

{

    int b;

    public:

    void get(int no)

    {

        b=no;

    }

    friend void swap(data1 &,data2 &);

    void show()

    {

        cout<<"b= "<

    }

};

void swap(data1 &a1,data2 &a2)

{

    int temp;

    temp=a1.a;

    a1.a=a2.b;

    a2.b=temp;

}

int main()

{

    data1 a;

    data2 b;

    a.get(10);

    b.get(20);

    cout<<"\n\n Before swapping \n\n";

    a.show();

    b.show();

    swap(a,b);

    cout<<"\n\n After swapping\n\n";

    a.show();

    b.show();

}

Read marks of 10 students for 4 subjects and compute and display total marks and status of each student in C++ Programming

 #include

 #include

 #include

 float total_marks(float []);

 int main()

    {

       clrscr();

       float marks[10][4]={0};

       cout<<"\n Enter the marks of the ten students : "<

       for(int count_1=0;count_1<10 count_1="" span="">

      {

         cout<<"\n Enter the marks obtained by student "<

           " :"<

         cout<<"\t Subject-1 = ";

         cin>>marks[count_1][0];

         cout<<"\t Subject-2 = ";

         cin>>marks[count_1][1];

         cout<<"\t Subject-3 = ";

         cin>>marks[count_1][2];

         cout<<"\t Subject-4 = ";

         cin>>marks[count_1][3];

      }

       getch();

       clrscr();

       cout<<"\n *********************************  Result Sheet  *****************************"<

       cout<<"\n Student No.  Subject-1  Subject-2  Subject-3  Subject-4  ";

       cout<<"Total Marks  Status\n"<

       for(int count_2=0;count_2<10 count_2="" span="">

      {

         cout<

         cout<

         cout<

         cout<

         cout<

         cout<

      cout<=200)?"Pass":"Fail");

         cout<

      }

          cout<<"\n****************************************************";

       getch();

       return 0;

    }

/*************************************************************************///-----------------------  total_marks(float [])  ---------------------///*************************************************************************/

float total_marks(float marks[])

    {

       float sum=0;

       for(int count=0;count<4 count="" span="">

      sum+=marks[count];

       return sum;

    }