import java.io.*;

class ItoaDemo2
{
   /* -----
	  PutBit(b): prints "1" if b != 0 and "0" otherwise
      ----- */
   private static void PutBit(int b)
    {
      if (b != 0)
         System.out.print("1");
      else
         System.out.print("0");
    }

   /* -----
	  PrintAsciiCode(c): prints an 8 bit quantity in legible "0" and "1"
      ----- */
   private static void PrintAsciiCode(char c)
    {
      int i;

      for (i = 7; i >= 0; i--)
         PutBit(c & (1 << i));
    }

   /* -----
	  PrintIntCode(c): prints a 32 bit quantity in legible "0" and "1"
      ----- */
   private static void PrintIntCode(int k)
    {
      int i;

      for (i = 31; i >= 0; i--)
         PutBit(k & (1 << i));
    }


   /* ---
      itoa(value): Integer to Ascii conversion function
      --- */
   private static String itoa(int value)
    {
      int sign, i, j;
      String result;
      char next_char;

      System.out.print("   Input value = ");
      PrintIntCode(value);
      System.out.println(" (" + value + ")");
      System.out.println();

      /* -------
         Handle trivial case...
      if (value == 0)
         return("0");
         ------- */

      /* -------
         Check sign
         ------- */
      if (value < 0)
       { sign = -1;
         value = -value;
       }
      else
       { sign = 1;
       }
      System.out.println("   sign = " + sign);
      System.out.println();

      /* -------
         Convert number part
         ------- */
      System.out.println("   ** Converting number part:");
      result = "";
      System.out.print("   result = \"" + result + "\"\t\tvalue = ");
      PrintIntCode(value);
      System.out.println(" (" + value + ")\n\n");

      while (value > 0)
      {  next_char = (char) ('0' + (value % 10)) ;
         result = next_char + result;
         value = value / 10;

         System.out.print("   result = \"" + result + "\"\t\tvalue = ");
         PrintIntCode(value);
         System.out.println(" (" + value + ")");

         System.out.print("   Actually, result = ");
         for (i = 0; i < result.length(); i++)
          { PrintAsciiCode(result.charAt(i));
            System.out.print("  ");
          }
         System.out.println(" (after 1 iteration)\n");

      }
      System.out.println();

      /* -------
         Put the sign in
         ------- */
      System.out.println("   ** Put in sign:");
      if (sign == -1)
       { 
         result = "*******" + result ;
       }
      else
       { 
         result = result + "";
       }

      System.out.println("   result = \"" + result + "\"");
      System.out.print("   Actually, result = ");
      for (i = 0; i < result.length(); i++)
       { PrintAsciiCode(result.charAt(i));
         System.out.print("  ");
       }
      System.out.println( " (ASCII codes !)\n");

      return(result);
    }

   public static void main(String[] args) throws IOException
    {
      BufferedReader stdin = new BufferedReader
				   (new InputStreamReader(System.in));
      String s;
      int value;
      int i;

      System.out.println("Program reads an integer converts "+
		   "it to ASCII representation");
      System.out.println();

      while (true)
       {
         System.out.println();
         System.out.print("Enter a number: ");
         value = Integer.parseInt (stdin.readLine());

         System.out.print("The internal representation for "+value+
                             " is: ");
         PrintIntCode(value);
         System.out.println();
         System.out.println();

         System.out.print("Now converting 2's complement "+
              "representation to ASCII..\n");
         s = itoa(value);
		 System.out.println();
		 System.out.println("Output: s = " + s);
       }
    }
}