CA-LAB-program-program for hexadecimal addition and multiplication.

# include <c.type.h>
#include<string.h>
Class Hexnumber
{
Int data[15];
Int n;
Public: 
Hexnumber() {n=0;}
Void read(); 
Void print(); 
Void leftshift(int count); 
Friend hexa number add(hexanumber,hexanumber);
Friend hexanumber multiply(hexanumber,hexanumber)
};
Void hexnumber::left shift(int count) 
{ 
n=n+count for(;count>0;count--) 
data[n+count-1]=0;
} 
Void hexnumber::read() 
{ 
Char a[10];
Int i; 
Cin>> a;
For(i=0;a[i]!=’\0’;i++)
{ 
If(isdigit(a[i]))
data[i]=a[i] & 0xf;
else 
data[i]=(a[i] & 0xf) + 9;
}
n=i
}
Void hexnumber::print()
{
int i;
for(i=0;i<n;i++0
if(data[i]<=9) 
count<<data[i]; 
else
count<<(char)(data[i]+55); 
}
Hexnumber add(hexnumber a, hexnumber b)
{ 
hexnumber c;
int I,j,k,digita,digitb,carry=0;
i=a,n-1; j=b,n-1;
if(a,n>b,n)
k=a,n; 
else
k=b,n; 
c,n=k+1; 
for(;i>=0 || j>=0;i--,j--,k--) 
{ 
digita=digitb=0;
if(i>=0) 
digita=a, data[i];
if(j>=0) 
digitb=b,data[j];
c.data[k]=(carry+digita+digitb)%16;
carry=(carry+digita+digitb)/16;
} 
c.data[k]=carry;
return(c); 
} 
Hexnumber multiply(hexnumber x, hexnumber y) 
{
Hexnumber z, temp;
int n;
int count=0,product,carry=0,i,j,digit;
for(i=y,n-1;i>=0;i--) 
{
digit=y,data[i]; 
for(j=x,n-1;j>=0;j--) 
{
Product=digit*x.data[j]+carry;
Temp.data[j+1]-product%16;
Carry=product/16;
}
Temp.data[j+1]=carry;
Temp,n=x,n+1;
Temp.leftshift(count);
Count++;
Z=add(z,temp);
} 
return z;
} 
Voidmain()
{
Hexnumber a,b,c;
Count<<”\n Enter first hex numbers ;”;
a.read(); 
count<<”\n Enter second hex numbers ;”;
b.read();
c=add(a,b); 
count<<”/nSum=”; 
c.print(); 
count<<”/nProduct=”; 
c=multiply(a,b); 
c.print(); 
}