--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/goodjava/mail/Examples.java	Thu Mar 11 01:22:20 2021 -0700
@@ -0,0 +1,82 @@
+package goodjava.mail;
+
+import java.io.InputStream;
+import java.io.IOException;
+import java.net.Socket;
+import java.net.URL;
+import java.util.Map;
+import java.util.LinkedHashMap;
+
+
+public class Examples {
+
+	private static Smtp newSmtp() throws IOException, MailException {
+		Socket socket = new Socket("smtpcorp.com",2525);
+		Smtp smtp = new Smtp(socket);
+		smtp.authenticate("smtp@luan.software","luanhost");
+		return smtp;
+	}
+
+	private static void smtp() throws IOException, MailException {
+		Smtp smtp = newSmtp();
+		smtp.from("smtp@luan.software");
+		smtp.to("fschmidt@gmail.com");
+		String text = "\r\n"
+			+"test3\r\n"
+			+".q\r\n"
+			+"x\r\n"
+			+"rg; ;lrg dsl rgj errlgerrg neskrjg skrg rdsg drskrg sd;gr s;kgr skrg skrg sdg ds fg;ks gegr erg ;sg sd; g;sdr gsklrg sg s;kkrg s;hg ;slrg ;elrg ;reg r;g ;r g;er g;ler g;e g; g;r g rg; srkd fjl kj kklsjrg lsk gskdf;rs gkrj glj grekjs lksjgkjn kjslg rklrg ;rsd; kj drsg akrglk kalrgklrsdnrgkgj;r ;s ns b;n;sn ;njslk r;n\r\n"
+		;
+		smtp.data(text);
+		smtp.close();
+	}
+
+	private static void mailText() throws IOException, MailException {
+		String text = ""
+			+"testm 2\n"
+			+"x\n"
+			+"产品\n"  // some random chinese
+			+"rg; ;lrg dsl rgj errlgerrg neskrjg skrg rdsg drskrg sd;gr s;kgr skrg skrg sdg ds fg;ks gegr erg ;sg sd; g;sdr gsklrg sg s;kkrg s;hg ;slrg ;elrg ;reg r;g ;r g;er g;ler g;e g; g;r g rg; srkd fjl kj kklsjrg lsk gskdf;rs gkrj glj grekjs lksjgkjn kjslg rklrg ;rsd; kj drsg akrglk kalrgklrsdnrgkgj;r ;s ns b;n;sn ;njslk r;n\n"
+		;
+		Map<String,String> headers = new LinkedHashMap<String,String>();
+		headers.put("From","smtp@luan.software");
+		headers.put("To","fschmidt@gmail.com");
+		headers.put("Subject","test text");
+		headers.put("Content-Type","text/plain; charset=utf-8");
+		Message msg = new Message(headers,text);
+		Smtp smtp = newSmtp();
+		smtp.send(msg);
+		smtp.close();
+	}
+
+	private static byte[] flag() throws IOException {
+		URL url = new URL("https://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Confederate_Rebel_Flag.svg/440px-Confederate_Rebel_Flag.svg.png");
+		InputStream in = url.openConnection().getInputStream();
+		byte[] a = new byte[100000];
+		int n = 0;
+		int i;
+		while( (i=in.read(a,n,a.length-n)) != -1 )
+			n += i;
+		in.close();
+		byte[] rtn = new byte[n];
+		System.arraycopy(a,0,rtn,0,n);
+		return rtn;
+	}
+
+	private static void mailFlag() throws IOException, MailException {
+		byte[] flag = flag();
+		Map<String,String> headers = new LinkedHashMap<String,String>();
+		headers.put("From","smtp@luan.software");
+		headers.put("To","fschmidt@gmail.com");
+		headers.put("Subject","test flag");
+		headers.put("Content-Type","image/png; name=\"flag.png\"");
+		Message msg = new Message(headers,flag);
+		Smtp smtp = newSmtp();
+		smtp.send(msg);
+		smtp.close();
+	}
+
+	public static void main(String[] args) throws Exception {
+		mailText();
+	}
+}