Describe and observe the outcome.

Question

This exercise guides you through experiments with connection-oriented datagram socket using code sample Example4

Compile and run Example4*.java. Start the Acceptor first, then the Requestor. Sample commands to do so are:
```
Java Example4ConnectionAcceptor 12345 Good-day!
Java Example4ConnectionRequestor localhost 12345
```

Answer 1

A script of the runs is as below:
C:\tmp>Java Example4ConnectionAcceptor 12345 Good-day!
now ready accept a connection
connection accepted
message sent
data socket closed
connection socket closed

C:\tmp>Java Example4ConnectionRequestor localhost 12345
Connection request granted
waiting to read
Message received:
Good-day!
data socket closed

The acceptor blocked waiting for a connection request, until the requestor is started and issues such a request. At that point the accept method call in the requestor is unblocked and the string (“Good-day!”) is sent by the acceptor to the requestor. The acceptor promptly closes the socket on its end. Meanwhile, the requestor echoes the message that it receives before it too closes the socket on its end.