add complex numbers

/*q.N 3.Write a program to add complex numbers of two different classes using friend class */
#include<iostream.h>
#include<conio.h>

class mula;
class aalu;
class gajar
{
      private:
              float realp,imagp;
              public:
                     void getdata();
                     //void show();
                     friend class mula;
                     };
                    
      void gajar::getdata()
      {
           cout<<"\nFor First Class \n";
           cout<<"\nEnter Real Part : ";
           cin>>realp;
           cout<<"\nEnter Imaginary Part : ";
           cin>>imagp;
           }
          
class aalu
      {
            private:
                    float realp,imagp;
                    public:
                           void getdata();
                           //void show();
                           friend class mula;
                           };
                    
      void aalu::getdata()
      {
           cout<<"\nFor Second Class \n";
           cout<<"\nEnter Real Part : ";
           cin>>realp;
           cout<<"\nEnter Imaginary Part : ";
           cin>>imagp;
           }
          
class mula
{
      private:
              float realp,imagp;
              public:
                     void add(gajar &g1,aalu &a1);
                     void display();
                     };
                    
             
      void mula::add(gajar &g1,aalu &a1)
      {
           realp=g1.realp+a1.realp;
           imagp=g1.imagp+a1.imagp;
           }
          
      void mula::display()
      {
           cout<<"\n*****************************\n";
           cout<<"\nThe Added Values Are : \n";
           cout<<"\n"<<realp<<" + i"<<imagp<<endl;
           }
          

int main()
{
    mula m;
    aalu a;
    gajar g;
   
    a.getdata();
    g.getdata();
    m.add(g,a);
    m.display();
    getch();
    return 0;
}
          
          
     
                    

swapping

/* Q.N 2. Write a program for swapping private data of two classes using friendly function and call by raference . */
#include<iostream.h>
#include<conio.h>

class class_2;
class class_1
{
      private:
              int x;
              public:
                     void getdata();
                     void display();
                     friend void swap(class_1 &,class_2 &);
                     };
                    
      void class_1::getdata()
      {
           cout<<"\nEnter A Value For X : ";
           cin>>x;
           }
          
      void class_1::display()
      {
           cout<<"\nThe Value Of X : "<<x;
           }
          
class class_2
{
      private:
              int y;
              public:
                     void getdata();
                     void display();
                     friend void swap(class_1 &,class_2 &);
                     };
                    
      void class_2::getdata()
      {
           cout<<"\nEnter A Value For Y : ";
           cin>>y;
           }
          
      void class_2::display()
      {
           cout<<"\nThe Value Of Y : "<<y;
           }

void swap(class_1 &a,class_2 &b)
{
     int temp;
     temp=a.x;
     a.x=b.y;
     b.y=temp;
     }

int main()
{
    class_1 p;
    class_2 q;
   
    p.getdata();
    q.getdata();
    cout<<"\n*******************************\n";
    cout<<"\nThe Values Before Swapping :\n";
    p.display();
    q.display();
    swap(p,q);
    cout<<"\n*******************************\n";
    cout<<"\nThe Values After Swapping :\n";
    p.display();
    q.display();
   
    getch();
    return 0;
}

friend function

/* Q.N 1. Write a program using friend function to add numerical values of three objects of different classes */
#include<iostream.h>
#include<conio.h>

class class_2;
class class_3;
class class_1
{
      private:
              int x;
              public:
                     void getdata();
                     friend void add(class_1,class_2,class_3);
                     };
                   
      void class_1::getdata()
      {
           cout<<"\nEnter A Value For X : ";
           cin>>x;
           }
         
class class_2
{
      private:
              int y;
              public:
                     void getdata();
                     friend void add(class_1,class_2,class_3);
                     };
                   
      void class_2::getdata()
      {
           cout<<"\nEnter A Value For Y : ";
           cin>>y;
           }
         
class class_3
{
      private:
              int z;
              public:
                     void getdata();
                     friend void add(class_1,class_2,class_3);
                     };
                   
      void class_3::getdata()
      {
           cout<<"\nEnter A Value For Z : ";
           cin>>z;
           }
         
void add(class_1 a,class_2 b,class_3 c)
{
     int sum;
     sum=(a.x+b.y+c.z);
     cout<<"\n**********************************\n";
     cout<<"\nThe Sum Of Given Three Integer : "<<sum<<endl;
     }
   
int main()
{
    class_1 p;
    class_2 q;
    class_3 r;
  
    p.getdata();
    q.getdata();
    r.getdata();
    add(p,q,r);
    getch();
    return 0;
}
   

Transpose With Pointer

#include<iostream.h>
#include<conio.h>
#include<stdlib.h>
class matrix
{
      int **mat,**t,r,c;
      public:
             void getmat();
             void transpose();
             void display();
             };
            
void matrix::getmat()
{
     cout<<"\nEnter the size of Matrix : ";
     cout<<"\nRow : ";
     cin>>r;
     cout<<"\nColumn : ";
     cin>>c;
     mat=new int *[r];
     for(int i=0;i<r;i++)
     mat[i]=new int [c];
    
     cout<<"\nEnter Your Matrix :\n";
     for(int i=0;i<r;i++)
     {
             for(int j=0;j<c;j++)
             {
                     cout<<"\nEnter Element ["<<i+1<<"]["<<j+1<<"] : ";
                     cin>>mat[i][j];
                     }
                     }
                     }
                    
void matrix::display()
{
     cout<<"\nThe Original Matrix : \n";
     for(int i=0;i<r;i++)
     {
             for(int j=0;j<c;j++)
             {
                     cout<<mat[i][j]<<"\t";
                     }
                     cout<<endl;
                     }
                     }
void matrix::transpose()
{
     t=new int *[c];
     for(int i=0;i<c;i++)
     t[i]=new int [r];
     cout<<"\nThe Transpose Matrix : \n";
     for(int i=0;i<c;i++)
     {
             for(int j=0;j<r;j++)
             {
                     t[i][j]=mat[j][i];
                     cout<<t[i][j]<<"\t";
                     }
                     cout<<endl;
                     }
                     }
                    
int main()
{
    matrix M;
    M.getmat();
    M.display();
    M.transpose();
    getch();
    return 0;
}

Transpose Matrix

#include<iostream.h>
#include<conio.h>

class matrix
{
      int mat[10][10],t[10][10],r,c;
      public:
             void getmat();
             void transpose();
             void display();
             };
            
void matrix::getmat()
{
     cout<<"\nEnter the size of Matrix : ";
     cout<<"\nRow : ";
     cin>>r;
     cout<<"\nColumn : ";
     cin>>c;
     cout<<"\nEnter Your Matrix :\n";
     for(int i=0;i<r;i++)
     {
             for(int j=0;j<c;j++)
             {
                     cout<<"\nEnter Element of ["<<i+1<<"]["<<j+1<<"] : ";
                     cin>>mat[i][j];
                     }
                     }
                     }
                    
void matrix::display()
{
     cout<<"\nThe Original Matrix : \n";
     for(int i=0;i<r;i++)
     {
             for(int j=0;j<c;j++)
             {
                     cout<<mat[i][j]<<"\t";
                     }
                     cout<<endl;
                     }
                     }
void matrix::transpose()
{
     cout<<"\nThe Transpose Matrix : \n";
     for(int i=0;i<c;i++)
     {
             for(int j=0;j<r;j++)
             {
                     t[i][j]=mat[j][i];
                     cout<<t[i][j]<<"\t";
                     }
                     cout<<endl;
                     }
                     }
                    
int main()
{
    matrix M;
    M.getmat();
    M.display();
    M.transpose();
    getch();
    return 0;
}

calculating the interest

/* Q.N 4. Write a program to create that calculates the interest of any number */
#include<stdio.h>
#include<conio.h>
#include<iostream.h>

class interest
{
      int year;
      float rate,amount;
      public:
             void getval();
             void calcint();
             };
            
      void interest::getval()
      {
           cout<<"Enter Principal Amount : "<<endl;
           cin>>amount;
           cout<<"\nEnter Rate and Time in Year : "<<endl;
           cin>>rate>>year;
           }
          
      void interest::calcint()
      {
           float inter=(amount*year*rate/100);
           cout<<"\nThe Interest Amount : "<<inter<<endl;
           }
          
      int main()
      {
          interest I;
          I.getval();
          I.calcint();
          getch();
          return 0;
          }
            

sorting

/*Q.N 3. Write a C++ code to sort the given 10 numbers in assending order .*/
#include<stdio.h>
#include<conio.h>
#include<iostream.h>

class sort
{
      int val[10];
      public:
             void getval(void);
             void sorts(void);
             void disp(void);
             };
            
      void sort::getval()
      {
           int i;
           cout<<"\nEnter 5 integer Data : \n";
           for(i=0;i<5;i++)
           {
                            cout<<"\nEnter Value "<<i+1<<" :";
                            cin>>val[i];
                            }
                            }
                           
      void sort::sorts()
      {
           int i,j,temp;
          
           for(j=0;j<5;j++)
           {
                           for(i=0;i<4;i++)
                           {
                                           if(val[i]>val[i+1])
                                           {
                                                              temp=val[i];
                                                              val[i]=val[i+1];
                                                              val[i+1]=temp;
                                                              }
                                                              }
                                                              }
                                                              }
                                                             
      void sort::disp()
      {
           int i;
           cout<<"\nThe Sorted Array : \n";
           for(i=0;i<5;i++)
           {
                            cout<<"\nValue "<<i+1<<":"<<val[i];
                            }
                            }
                           
      int main()
      {
          sort S;
          S.getval();
          S.sorts();
          S.disp();
          getch();
          return 0;
          }