finger.java Source code

Introduction

Here is the source code for finger.java

Source

import java.io.DataInputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.net.Socket;

public class finger {

    public final static int port = 79;

    public static void main(String[] args) {

        String hostname;
        Socket theSocket;
        DataInputStream theFingerStream;
        PrintStream ps;

        try {
            hostname = args[0];
        } catch (Exception e) {
            hostname = "localhost";
        }

        try {
            theSocket = new Socket(hostname, port, true);
            ps = new PrintStream(theSocket.getOutputStream());
            for (int i = 1; i < args.length; i++)
                ps.print(args[i] + " ");
            ps.print("\r\n");
            theFingerStream = new DataInputStream(theSocket.getInputStream());
            String s;
            while ((s = theFingerStream.readLine()) != null) {
                System.out.println(s);
            }
        } catch (IOException e) {
            System.err.println(e);
        }

    }

}