Program To Print ASCII value of Alphabates and Digits

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

void main()
{
clrscr();
char ch;
int j=0;

cout<<"\n Uppercase Alphabates";
cout<<"\n-----------------------\n\n";
for(int i=65;i<91;++i)
{
j++;
ch=i;
cout<<ch<<":"<<i<<"\t";
if(j==10)
{
cout<<"\n";
j=0;
}
}
j=0;

cout<<"\n\n\n Lowercase Alphabates";
cout<<"\n-----------------------\n\n";
for(i=97;i<123;++i)
{
j++;
ch=i;
cout<<ch<<":"<<i<<"\t";
if(j==10)
{
cout<<"\n";
j=0;
}
}

cout<<"\n\n\n Digits";
cout<<"\n--------\n\n";
for(i=48;i<58;i++)
{
ch=i;
cout<<ch<<":"<<i<<"\t";
}
getch();
}


                                                   Output