AJ Practical 2

Practical : 2

Subject : Advanced JAVA

Aim : Create a chat application using either TCP or UDP protocol

Source Code :

//ser2.java

import java.io.*;

import java.net.*;

import java.util.Scanner;

public class ser2

{

            public static void main(String[] args)

            {             

                        String m;

                        String str;

                        try

                        {              

                                    Scanner scan=new Scanner(System.in);

                                    ServerSocket s1=new ServerSocket(8);

                                    Socket s=s1.accept();

                                    while(true)

                                    {

DataInputStream dis=new DataInputStream(s.getInputStream());

DataOutputStream dos=new DataOutputStream(s.getOutputStream());

                                    System.out.print("Enter your message:");

                                    m=scan.nextLine();

                                    dos.writeUTF(m);

                                    str=(String)dis.readUTF();

                                    System.out.println("Client Says= "+str);

                                    s1.close();

                                    }

                        }

                        catch(Exception e)

                        {

                                    System.out.println(e);

                        }

            }

}

//cli2.java

import java.io.*;

import java.net.*;

import java.util.Scanner;

public class cli2

{

            public static void main(String[] args)

            {

                        String m;

                        String str;

                        try

                        {               

                                    Scanner scan=new Scanner(System.in);

                        Socket sc=new Socket("Localhost",8);

                        while(true)

                        {

DataOutputStream dout = new DataOutputStream(sc.getOutputStream());

DataInputStream dis=new DataInputStream(sc.getInputStream());

                        str=(String)dis.readUTF();

                        System.out.println("Server says= "+str);

                        System.out.print("Enter your message:");

                        m=scan.nextLine();

                        dout.writeUTF(m);

                        }

            }

            catch (Exception e)

                        {

                        System.out.println(e);

                        }

            }

}

Output :