Java Socket Programming Recap & Assignment 1
SMTP
After the header, and before the body, of the email there must be a blank line. This is required for the assignment.
DATA
SUBJECT: Hello
This is the body.
.
Java Sockets
To open a socket use the code:
import java.net.*;
Socket socket = new Socket("ip.address", <port>);
Reading Sockets
To read the socket you can use the following:
import java.io.*
InputStream is = socket.getInputStream();
InputStreamReader isr = new InputStremReader(is);
BufferedReader br = new BufferedReader(isr);
The BufferedReader allows you to read the stream a line at a time.
To read the buffer to a variable you can use the following:
String response = br.readLine();
Writing to Sockets
To send data you must first setup an output stream:
DataOutputStream os = new DataOutputStream(socket.getOutputStream());
To write a variable to the stream you use:
os.writeBytes(variable);
Assignment 1
The instructions for this assignment are available here.