Program-2

// Program adds two numbers in binary using class and object.


#include<iostream.h>
#include<conio.h>
//using namespace std;

class adder{
public:
   int number1[8];
   int number2[8];
   int carry[8];
   int sum[8];
   int number_bits;
   char choice;
  
  

   void input(){
      cout<<"Input the number of bits you want to enter\n";
      cout<<"For the first number \n";
      cin>>number_bits;


      if(number_bits<0||number_bits>8){
         cout<<"Error, the number of bits cannot be allowed to be \n";
         cout<<"greater than 8 or less than 0\n";
         cout<<"Please,Input the number correct entry\n";
          cout<<"For the first number \n";
          cin>>number_bits;
      }

      if(number_bits<8){
         for(int k=1;k<=(8-number_bits);k++){
            number1[k]=0;
         }
      }
      cout<<"Enter the bits as 1 or 0 from the most significant bit\n";
      for(int i=(9-number_bits);i<=8;i++){
         cout<<"Enter bit "<<i-(8-number_bits)<<" : ";
         cin>>number1[i];
      }

      cout<<"Input the number of bits you want to enter\n";
      cout<<"For the second number \n";
      cin>>number_bits;


      if(number_bits<0||number_bits>8){
         cout<<"Error, the number of bits cannot be allowed to be \n";
         cout<<"greater than 8 or less than 0\n";
         cout<<"Please,Input the number correct entryr\n";
          cout<<"For the second number \n";
          cin>>number_bits;
      }

      if(number_bits<8){
         for(int k=1;k<=(8-number_bits);k++){
            number2[k]=0;
         }
      }
      
      cout<<"Enter the bits as 1 or 0 from the most significant bit\n";
      for(i=(9-number_bits);i<=8;i++){
         cout<<"Enter bit "<<i-(8-number_bits)<<" : ";
         cin>>number2[i];
      }

      cout<<"THE FIRST NUMBER YOU HAVE ENTERED \n";
      cout<<"NUMBER ONE:  ";
      for(int l=1;l<=8;l++){
         cout<<number1[l];
         cout<<" ";
      }
      cout<<endl;
      cout<<"THE SECOND NUMBER YOU HAVE ENTERED \n";
      cout<<"NUMBER TWO: ";
      for(l=1;l<=8;l++){
         cout<<number2[l];
         cout<<" ";
      }
      cout<<endl;

      
   }

   void check(int array[],int size){

      for(int b=1;b<=size;b++){
         array[b];
         }
      for(b=1;b<=size;b++){
       if((array[b]!=0)&&(array[b]!=1)){
         cout<<"One of the entry is not 1 0r 0\n";
         cout<<"please update it, go back to A on the menu\n";
            break;
       }
       else{
          cout<<"The entries are in binary, ok\n";
          break;
       }
      }

   }

char uppercase(char ch){
   switch(ch){


case'a':return'A';break;
case'b':return 'B';break;
case'c':return 'C';break;
case'd':return 'D';break;
case'e':return 'E';break;
case'f':return 'F';break;
case'g':return 'G';break;
case'h':return 'H';break;
case'i':return 'I';break;
case'j':return 'J';break;
case'k':return 'K';break;
case'l':return 'L';break;
case'm':return 'M';break;
case'n':return 'N';break;
case'o':return 'O';break;
case'p':return 'P';break;
case'q':return 'Q';break;
case'r':return 'R';break;
case's':return 'S';break;
case't':return 'T';break;
case'u':return 'U';break;
case'v':return 'V';break;
case'w':return 'W';break;
case'x':return 'X';break;
case'y':return 'Y';break;
    
default:return ch;break;                        
   }
}      

void adding(int x[],int j,int y[],int k){
    carry[8]=0;
   for(int g=8;g>=1;g--){
      if((x[g]+y[g]+carry[g])==0){
         sum[g]=0;
         carry[g-1]=0;
      }
      if((x[g]+y[g]+carry[g])==1){
         sum[g]=1;
         carry[g-1]=0;
      }
      if((x[g]+y[g]+carry[g])==2){
         sum[g]=0;
         carry[g-1]=1;
      }
      if((x[g]+y[g]+carry[g])==3){
         sum[g]=1;
         carry[g-1]=1;
      }
   }
  
   cout<<"THE SUM OF NUMBERS ENTERED IS \n";
   for(int r=1;r<=8;r++){
      cout<<sum[r];
      cout<<" ";
   }
   if(carry[1]==1){
      cout<<"over flow of ";
      cout<<carry[1];
      cout<<endl;
   }
}


};

int main(){
clrscr();
      adder sum;
      sum.choice='Y';

      while(sum.choice=='Y'){
cout<<"\n";
cout<<" Choose from the following \n";
cout<<" A: Input of two numbers in binary \n ";
cout<<"B: Check the entry of numbers \n";
cout<<" C: Adding the two numbers \n";
cout<<" ";
cin>>sum.choice;
sum.choice=sum.uppercase(sum.choice);

      switch(sum.choice)
      {

case 'A':
sum.input();
break;

case 'B':
cout<<"Checking the first number\n";
sum.check(sum.number1,8);
cout<<"Checking the second number\n";
   sum.check(sum.number2,8);
break;
      case 'C':
sum.adding(sum.number1,8,sum.number2,8);
break;


default: cout<<"Sorry, your selection is not right \a\n";break;
      }

     cout<<"\n";
      cout<<"Do you want to experiment some more [Y/N] ?\n";
      cin>>sum.choice;
     cout<<"\n";
      sum.choice=sum.uppercase(sum.choice);

      if(sum.choice=='N'){
cout<<"END.......\n";
cout<<endl;
      }
      clrscr();
      }

      return 0;
}