Re-Encode a String (Hex, Base64, URL, etc)

Demonstrates how to convert from one encoding to another. For example: base64 to hex, URL to base64, base64 to quoted-printable, etc.

Note: The ReEncode method is unreleased at the time of this writing (08-April-2008) The next major Chilkat Crypt2 release after this date will include the ReEncode method.

Download Chilkat Java Library

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {

    CkCrypt2 crypt = new CkCrypt2();

    //  Any string argument automatically begins the 30-day trial.
    boolean success;
    success = crypt.UnlockComponent("30-day trial");
    if (success != true) {
        System.out.println("Crypt component unlock failed");
        return;
    }

    String hexStr;
    hexStr = "41424344E0E1E2E3";

    String fromEncoding;
    fromEncoding = "hex";
    String toEncoding;
    toEncoding = "base64";

    //  Convert from hex to base64
    String base64;
    base64 = crypt.reEncode(hexStr,fromEncoding,toEncoding);
    System.out.println(base64);

    //  Now convert from base64 to quoted-printable:
    fromEncoding = "base64";
    toEncoding = "quoted-printable";
    String qp;
    qp = crypt.reEncode(base64,fromEncoding,toEncoding);
    System.out.println(qp);

    //  Now convert from quoted-printable to URL:
    fromEncoding = "quoted-printable";
    toEncoding = "url";
    String urlEnc;
    urlEnc = crypt.reEncode(qp,fromEncoding,toEncoding);
    System.out.println(urlEnc);

    //  Now convert from URL back to hex:
    fromEncoding = "url";
    toEncoding = "hex";
    hexStr = crypt.reEncode(urlEnc,fromEncoding,toEncoding);
    System.out.println(hexStr);

    //  The output of this program is:
    //  QUJDRODh4uM=
    //  ABCD=E0=E1=E2=E3
    //  ABCD%E0%E1%E2%E3
    //  41424344E0E1E2E3

  }
}