Java

Set a Preferred Charset for an Email

Demonstrates the Chilkat Email.PreferredCharset property. It applies only when building an email with non-English characters where the charset has not been explicitly set. Chilkat normally auto-selects a default charset per language (Chinese gb2312, Japanese shift_JIS, Korean ks_c_5601-1987, Thai windows-874, others iso-8859-*), and this property lets you steer that choice — for example choosing iso-2022-jp for Japanese. It is a preference, not a forced conversion: if the preferred charset cannot represent the text, it is ignored. This example sets a preferred charset.

Background: A single language often has several legacy charsets — Japanese, for instance, can be encoded as shift_JIS, euc-jp, or iso-2022-jp. Some mail environments expect one particular encoding, so PreferredCharset lets you nudge Chilkat toward it. Contrast this with the Charset property, which forces a specific charset: PreferredCharset is only a hint that Chilkat honors when it fits.

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Java

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[])
  {
    //  Demonstrates the Email.PreferredCharset property.  It only applies when building an
    //  email that contains non-English characters and no charset is explicitly set.  Chilkat
    //  will prefer this charset if it can represent the email's text; otherwise it is ignored.

    CkEmail email = new CkEmail();
    email.put_Subject("Preferred charset example");
    email.put_Body("Japanese text would go here.");

    //  Prefer iso-2022-jp instead of the default shift_JIS for Japanese text.
    email.put_PreferredCharset("iso-2022-jp");

    System.out.println("PreferredCharset = " + email.preferredCharset());
  }
}