OOP Add and subtract imaginary and real number

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Object:

Write a class description for complex numbers. A complex number in mathematics is defined

as x+y, where x defines the real part and y defines the imaginary part. Provide the getData

and display Data functionalities to input and display a complex number. Also write methods

for addition and subtraction of two numbers. Write a program that creates 3 complex members and initialize them to zero. Provide options to either input, display, add,

subtract, or multiply the 2 members.

  Add: x3= x1 + x2 , y3= y1 + y2

Source code:

#include <iostream>

using namespace std;

class calculate

{

       public:

              void add(int c,int d,int a,int b)

              {

              int number1=a,imaginary1=b,number2=c,imaginary2=d,number,imaginary;

                    

                     number=number1+number2;

                     imaginary=imaginary1+imaginary2;

                     cout<<"Answer is : "<<number<<"+"<<imaginary<<"i"<<endl;

                    

              };

              void sub(int c,int d,int a,int b)

              {

              int number1=a,imaginary1=b,number2=c,imaginary2=d,number,imaginary;

                    

                     number=number1-number2;

                     imaginary=imaginary2-imaginary1;

                     cout<<"Answer is : "<<number<<"-"<<imaginary<<"i"<<endl;

                    

              };

             

             

              };

              void main()

              {

                     calculate calcu;

                     int input,input2,input3,input4;

                     char press;

             

             

             

              cout<<"Press 1 for addition and 2 for subtraction complex numbers"<<endl;

              cin>>press;

              cout<<endl;

              switch (press)

              {      case '1':

              {cout<<"Use i with imaginary numbers"<<endl;

              cout<<"Enter first real number"<<endl;

              cin>>input;

              cout<<"Enter first imaginary number"<<endl;

              cin>>input2;

              cout<<"Enter second real number"<<endl;

              cin>>input3;

              cout<<"Enter second imaginary number"<<endl;

              cin>>input4;

              calcu.add(input,input2,input3,input4);

              }

                     case '2':

                           {      cout<<"Enter first real number"<<endl;

              cin>>input;

              cout<<"Enter first imaginary number"<<endl;

              cin>>input2;

              cout<<"Enter second real number"<<endl;

              cin>>input3;

              cout<<"Enter second imaginary number"<<endl;

              cin>>input4;

              calcu.sub(input,input2,input3,input4);}

              }

             

              }

Output