Convert String or symbols to Binary

import java.util.Scanner;
class StrToBinary
{
public static void main(String[] args)
{
    Scanner dtpe = new Scanner(System.in);
    System.out.println("Enter a String");
    String  a = dtpe.nextLine();
int binary[] = new int[1000];
int l=a.length();
for (int x=0; x<l; x++)
{
    int ch = (int)a.charAt(x);
    if(ch!= 32)
    { int c=0;
        while(ch>0)
        {
            int d= ch%2;
            binary[c] = d;
            ch=(int)ch/2; c++;
        }

        for(int y=c-1; y>=0; y--)
        System.out.print(binary[y] + " ");
    }
    else
    System.out.print("  ");
}

}}