How to communicate between different computers using socket???

Answer 1

you need to make a server then created a client which has to connect to the same server IP / port.

Answer 2

I'll give you my code for a server and a client

Answer 3

Server:

import java.io.*;
import java.net.*;
class Main{
public static void main(String[] args) throws IOException{
try{
ServerSocket ss = new ServerSocket(1201);
Socket s = ss.accept();

DataInputStream din = new DataInputStream(s.getInputStream());
DataOutputStream dout = new DataOutputStream(s.getOutputStream());

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String msgin = "", msGout = "";

while(!msgin.equals("end")){
msgin = din.readUTF();
System.out.println(msgin);
msGout = br.readLine();
dout.writeUTF(msGout);
}
s.close();
}catch(Exception e){
//handle excpetions
}
}
}

Client:
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.Socket;

class Main{
public static void main(String[] args) throws IOException{
try{
Socket s = new Socket("127.0.0.1", 1201);
DataInputStream din = new DataInputStream(s.getInputStream());
DataOutputStream dout = new DataOutputStream(s.getOutputStream());

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String msgin = "", msgout = "";""

while(!msgin.equals("end")){
msgout = br.readLine();
dout.writeUTF(msgout);
msgin = din.readUTF();
System.out.println(msgin);
}
}catch (Exception e){

}
}
}