//creates input stream, allows input from keyboard
DataInputStream userin = new DataInputStream(System.in);
System.out.println("Enter host name(e.g. usun22)-");
try
{
//reads host name entered by user
host = userin.readLine();
}
//if host name is unreadable, terminate program
catch(IOException inputhost)
{
System.out.println("Error reading host name");
System.out.println("Exiting.........");
System.exit(0);
}
//if no host entered assume host = local host
if(host.length() < 1)
{
host=DEF_HOST;
}
try
{
//create a socket connection using host name and server's port number
Socket soc = new Socket(host, DEF_PORT);
System.out.println("Connection established with host " + host);
//create an input and output stream for new connection
PrintWriter outStream = new PrintWriter(new OutputStreamWriter(soc.getOutputStream()));
BufferedReader inStream = new BufferedReader(new InputStreamReader(soc.getInputStream()));
while(true)
{
System.out.println("-------------------------------------------");
System.out.println("\nEnter Line to Send(Type 'quit' to quit)- ");
//waits for user to input line of text
String toSend = userin.readLine();
//send line of text to server
outStream.println(toSend);
//flust output stream
outStream.flush();
//if quit entered, close socket and terminate
if (toSend.compareTo("quit")==0)
{
System.out.println("\n'quit' command entered by user");
System.out.println("\nExiting...........\n");
soc.close();
System.exit(0);
}
System.out.println("\nSent: " + toSend);
//waits until reply received
String reply = inStream.readLine();
//displays reply
System.out.println("\nReceived: " + reply);
}//end of while(true)
}//end of try
//caught if connection could not be established with host
catch(IOException ex)
{
System.out.println("Connection failed due to host "+ host + " not responding");
System.out.println("Exiting.......");
System.exit(0);
}
