Hi,

I know the ASCII code for the letter H is: 1001000
You can get the decimal number of H and then try to convert to binary. Here is a small program to do the conversion. You can figureout how to place this into a dimensinal array.
import java.util.*;

class ConvertString
{
public static void main (String [] args)
{
char c = 'H';
int a = c - 0;
int b = 0; intializing b to zero
Stack s = new Stack(); // declaring a new stack

System.out.println(c +" equal in decimal to: " +a);

do
{
b = (a%2); //getting the remainder
s.push(String.valueOf(b)); // push the value of b into the stack
a /= 2; // remove right most digit
} while(a != 0); //continue until all digits computed

while(!s.empty())

System.out.println(s.pop()); //result of H in binary.
}
}

Hope this helped little and good luck.
Dounia