Subtraction of Two matrices using oop

#include<iostream.h>

#include<conio.h>

class matrix

{

public:

int i,j,row,col,a[10][10],b[10][10],c[10][10];

void getdata();

void subdata();

void putdata();

};

void matrix::getdata()

{

cout<<"Enter the size of row and column of Matrices:";

cin>>row>>col;

cout<<"Enter the elements for Ist"<<row<<"x"<<col<<"matrix:";

for(i=0;i<row;i++)

{

for(j=0;j<col;j++)

{

cin>>a[i][j];

}}

cout<<"Enter the elements for IInd"<<row<<"X"<<col<<"matrix:";

for(i=0;i<row;i++)

{

for(j=0;j<col;j++)

{

cin>>b[i][j];

}}}

void matrix::subdata()

{

for(i=0;i<row;i++)

{

for(j=0;j<col;j++)

{

c[i][j]=a[i][j]-b[i][j];

}}}

void matrix::putdata()

{

cout<<"the Difference of matrix is:";

for(i=0;i<row;i++)

{

cout<<"\n";

for(j=0;j<col;j++)

{

cout<<"\t"<<c[i][j];

}}}

void main()

{

clrscr();

matrix obj;

obj.getdata();

obj.subdata();

obj.putdata();

getch();

}