(Java) Get Email Date/Time

Demonstrates getting the email "Date" header field in a CkDateTime object.

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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[])
  {
    CkEmail email = new CkEmail();

    // Load a .eml file into the email object.
    boolean success = email.LoadEml("/home/users/chilkat/eml/myEml.eml");

    CkDateTime dtTime = email.GetDt();
    if (email.get_LastMethodSuccess() == false) {
        System.out.println("Email has no Date header field.");
        return;
        }

    // Once we have the CkDateTime object, we can get the date/time in all sorts of formats:

    // Get as a RFC822 GMT string:
    boolean bLocalTime = false;
    System.out.println(dtTime.getAsRfc822(bLocalTime));

    // Get as an RFC822 string in the local timezone.
    // (remember, the daylight savings that existed at the given time in the past is applied)
    bLocalTime = true;
    System.out.println(dtTime.getAsRfc822(bLocalTime));

    // Get as a 32-bit UNIX time (local or GMT..)
    // The Unix time is number of seconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC). 
    int unixTime = dtTime.GetAsUnixTime(bLocalTime);
    System.out.println("Unix time: " + unixTime);

    // One can also get the as a "DtObj" object for accessing the individual
    // parts of the date/time, such as month, day, year, hour, minute, etc.
    // The DtObj can be obtained in the GMT or local timezone:
    CkDtObj dtObj = dtTime.GetDtObj(bLocalTime);
    if (dtTime.get_LastMethodSuccess() == false) {
        System.out.println("This should never really happen!");
        return;
        }

    System.out.println(dtObj.get_Day() + "-" + dtObj.get_Month() + "-" + dtObj.get_Year() + " " + dtObj.get_Hour()
         + ":" + dtObj.get_Minute() + ":" + dtObj.get_Second());
  }
}