while ((line = reader.readLine()) != null)
        {
            output += line + "n";
        }

if (clinetChoice.equals("3"))
    {
        String command = "free";

        Process process = Runtime.getRuntime().exec(command);

        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));

        System.out.println("You Chose Option Three");

        String line;

        while ((line = reader.readLine()) != null)
        {
            output += line;
            System.out.println(line);
            line = reader.readLine();
        }

    }

while ((fromServer = input.readLine())+"n" != null)
    {
        System.out.println("Server: " + fromServer);
        if (fromServer.equals("Bye"))
            break;

        System.out.print("Enter your choice: ");
        fromClient = stdIn.readLine().trim();

        if(fromClient.equals("1"))
        {
            System.out.println("Client: " + fromClient);
            output.println(fromClient);

        }

One
Two
Three
Four

One
Enter your choice:  (It prompts me for new command)
Two
Enter your choice:
Three
Enter your choice:
Four

One
Two
Three
Four
Enter your choice:

String fromServer = "";
String line;
while ((line = input.readLine()) != null) {
    fromServer += line + "n"; // collect multiline strings into fromServer
}

System.out.println("Server: " + fromServer);
if (fromServer.equals("Bye"))
    break;

System.out.print("Enter your choice: ");
fromClient = stdIn.readLine().trim();

if(fromClient.equals("1"))
{
    System.out.println("Client: " + fromClient);
    output.println(fromClient);
}

System.out.print("Enter your choice: ");
    fromClient = stdIn.readLine().trim();