String manipulation functions-very worth

                       string manipulation functions

#include <iostream> #include <iomanip> #include <string> using namespace std; int main () { string firstWord, secondWord, thirdWord, fourthWord, fifthWord; cout << "Enter a five-word phrase." << endl; cin >> firstWord >> secondWord >> thirdWord >> fourthWord >> fifthWord; cout << "Your first word is: " << firstWord << endl << "Your second word is: " << secondWord << endl << "Your third word is: " << thirdWord << endl << "Your fourth word is: " << fourthWord << endl << "Your fifth word is: " <<fifthWord << endl; return 0; }

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complex number arithemetic operation using friend function

  Using friend function write a c++ program to add 2 complex

                                  numbers.

#include<iostream.h>
#include<conio.h>
class Complex{
private:
int real,imaginary;
public:
void getComplexNo()
{
cout<<"Input real and Imaginary part for Complex No";
cin>>real>>imaginary;
}
void printComplexNO()
{
cout<<"Complex NO-->"<<"+i"<<imaginary<<"\n";
}
friend Complex AddComplex(Complex C1,Complex c2);
};
Complex AddComplex(Complex C1,Complex C2)
{
Complex T;
T.real=C1.real+C2.real;
T.imaginary=C1.imaginary+C2.imaginary;
return T;
}
void main()
{
Complex A,B;
cot<<"Get First Complex number\n";
A.getComplexNo();
cout<<"Get Second Complex Number\n";
B.getComplexNo();
cout<<"Finding total of complex No's\n";
Complex Tot=AddComplex(A,B);
getch();
clrscr();
cout<<"First Complex No\n";
cout<<"------------------\n";
A.printComplexNo();
cout<<"Second Complex No\n";
cout<<"----------------\n";
B.printcomplexNo();
cout<<"Printing the Result\n";
cout<<"-------------------\n";
Tot.printComplexNo();
cot<<"-----------------\n";
getch();
}

Output:

First Complex No

-----------------

Complex No=2+i3

Second Complex No

----------------

Complex No=5+i2

Printing the Result

---------------------

Complex No=7 +i5

-------------------

Get First Complex number

Input real and Imaginary part for Complex No12

Input real and Imaginary part for Complex No12

4

Get Second Complex Number

Input real and Imaginary part for Complex No9

4

Finding Total of Complex no's

First Complex No

------------------

Complex no-->12+i4

Second Complex No

-----------------

complex No-->9+i4

Printing the Result

----------------- 

Complex No-->21+i8

------------------

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Complex number arithmetic operation-using c++(inheritance)

         Program for add and multiply complex numbers implemented using hierarchical inheritance and also using        

                                   constructor

#include<iostream.h>

#include<conio.h>

 

class A     //Base class

{

    public:

    double a,b;

    void getnumber()     // Member function

    {

           cout<<"\n\n\tEnter Number for complex number:::\n";

           cin>>a>>b;

           cout<<"\n\tComplex number is :::\t";

           if(b>0)

           cout<<a<<"+"<<b<<"i";

           else

           cout<<a<<b<<"i";

    }

};

 

class B : public A    // Derived class 1

{

    public:

    B(double a,double b,double c,double d) //parameterized constructor

    {

 

        if((b+d)>0)

        cout<<"\n\nAddition of complex number :::\t"<<(a+c)<<"+"<<(b+d)<<"i";

        else

        cout<<"\n\nAddition od complex number :::\t"<<(a+c)<<(b+d)<<"i";

 

    }

 

};

 

class C : public A   // Derived class 2

{

    public:

    C(double a,double b,double c,double d) //parameterized constructor

    {

 

        if(((a*d)*(b*c))>0)

    cout<<"\n\nMultiplication of complex number :::\t"<<((a*c)+((b*d)*(-1)))<<"+"<<(a*d)+(b*c)<<"i";

        else

    cout<<"\n\nMultiplication of complex number :::\t"<<((a*c)+((b*d)*(-1)))<<(a*d)+(b*c)<<"i";

 

    }

};

 

int main()

{

    clrscr();

    A a1;     // a1 is object of class A

    a1.getnumber();  // It call member function ( getnumber() ) of class A

    A a2;     // a2 is another object of class A

    cout<<"\n\n---------------------------------------------------";

    a2.getnumber(); // It call member function ( getnumber() ) of class A

    cout<<"\n\n---------------------------------------------------";

    B(a1.a,a1.b,a2.a,a2.b);  // It call class B constructor

    cout<<"\n\n---------------------------------------------------";

    C(a1.a,a1.b,a2.a,a2.b);  // It call class C constructor

    cout<<"\n\n---------------------------------------------------";

 

    getch();

}

/*

If 10+20i is complex number then

a1.a=10  and  a1.b=20

and another complex number for add and multiply is 30+40i then

a2.a=30  and  a2.b=40

*/

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