Text to binary convertion

Question

this lil code supposed to print out the binary value of what is in the string, however when a "!" or a " " space is passed i dont get the 8 digits instead i get 7
" " = 0100000
not 00100000 (the value i supposed )
here is the code that i came up with
public class convert
public static void main(String[] args)
StringBuffer buffer = new StringBuffer();
String s = " ";
for (int i = 0; i < s.length(); i++)
buffer.append(00000000+Integer.toString(s.charAt(i),2));
System.out.println(buffer);
}

Answer 1

also any idea on how to unconvert the binary value
back to normal text?? i came up with this Have you executed this code? You aren't converting anything here. You need to convert each byte to a char and append that to your buf.
When you post code, please put your code between [code][/code] tags for readability.
>
public class test
public static void main(String args[])
StringBuffer buf = new StringBuffer();
String str="01101000011001010110110001110000";
if((str.length()%2)==1)
System.err.print("bad bin string");
else
for(int i=0;i<str.length();i+=8)
buf.append(str.substring(i,i+7));
System.out.println(buf);
i use the remainder of 1 to check to see is it a good
string or a bad 1, thats why i need the 8 digits