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Re: Need help to convert

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  To: comp.lang.java.gui

Katak wrote:

Lew suggested the String.charAt() method but,
if this is an exercize in converting
number representations by hand
  see the comment;
else
why?YourConverter:MyConverter

import java.util.Scanner;

public class YourConverter {
  public static void main(String[] args) {

    String bin;
    int result = 0;
    double power = 0;

    System.out.println("Enter a binary number: ");
    Scanner input = new Scanner(System.in);
    bin = input.nextLine();

//See Roedy Green's mindprod site for details on
//converting binary to decimal numbers

    for (int i = bin.length(); i == 0; i--) {
      double cubed = Math.pow(2, power);
      result += ((bin.charAt(i) - 48) * (cubed));
      power++;
    }
    System.out.print("Decimal = " + result);
  }

}

Enter a binary number:
1101
Decimal = 0


public class MyConverter {

  public static void main(String[] args) {

    String hexString = "4341464542414245";
    Long dec = Long.valueOf(hexString, 16);
    String bin = Long.toBinaryString(dec);

    System.out.println(dec  + " : " + hexString);
    System.out.println(bin);

  }
}

4846231937305625157 :
4341464542414245
1000011010000010100011001
00010101000010010000010100001001000101

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Re: Need help to convert "Katak" <katak@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000
  Re: Need help to convert "Jeff Higgins" <jeff.higgins@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000
    Re: Need help to convert "Roedy Green" <roedy.green@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000
      Re: Need help to convert "Katak" <katak@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000
        Re: Need help to convert "Roedy Green" <roedy.green@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000
    Re: Need help to convert "Katak" <katak@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000
      Re: Need help to convert "Roedy Green" <roedy.green@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000
        Re: Need help to convert "tar" <tar@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000
  Re: Need help to convert "Roedy Green" <roedy.green@THRWHITE.remove-dii-this> - 2011-04-27 15:43 +0000

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