(Java) Read POP3 Mail Headers

Reads the header for each email in a POP3 mailbox and display the FROM and SUBJECT header fields.

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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[])
  {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // The mailman object is used for receiving (POP3) 
    // and sending (SMTP) email.
    CkMailMan mailman = new CkMailMan();

    // Set the POP3 server's hostname
    mailman.put_MailHost("pop.someMailServer.com");

    // Set the POP3 login/password.
    mailman.put_PopUsername("****");
    mailman.put_PopPassword("****");

    // Read mail headers and one line of the body.
    CkEmailBundle bundle = mailman.GetAllHeaders(1);
    if (mailman.get_LastMethodSuccess() == false) {
        System.out.println(mailman.lastErrorText());
        return;
        }

    int i = 0;
    CkEmail email;
    while (i < bundle.get_MessageCount()) {
        email = bundle.GetEmail(i);

        // Display the From email address and the subject.
        System.out.println("From: " + email.ck_from());
        System.out.println("Subject: " + email.subject());

        i = i+1;
        }
  }
}