TY_BCS_A_JAVA_SLIP9

SLIP 9:

Write a program which sends the name of text file from the client to server and display the contents of that file on the client machine. If the file does not exists display proper error msg.

/* server_Slip9_2 */

import java.io.*;

import java.net.*;

class Slip9_Server

{

            public static void main(String a[]) throws Exception

            {

                        ServerSocket ss = new ServerSocket(1000);

                        System.out.println("Server is waiting for client : ");

                        Socket s =ss.accept();

                        System.out.println("Client is connected");

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

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

                        String fname =(String)dis.readUTF();

                        File f = new File(fname);

                        if(f.exists())     

                        {

                                    System.out.println("file is exists");

                                    FileInputStream fin = new FileInputStream(fname);

                                    int ch;

                                    String msg = "";

                                    while((ch=fin.read())!=-1)

                                    {

                                                msg=msg+(char)ch;

                                    }

                                    dos.writeUTF(msg);

                        }

                        else

                                    dos.writeUTF("0");

            }

}

/* client_Slip9_2 */

import java.io.*;

import java.net.*;

class Slip9_Client

{

            public static void main(String a[]) throws Exception

            {

                        Socket s = new Socket("localhost",1000);

                        System.out.println("client is connected : ");

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

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

                        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

                        System.out.println("Enter file name : ");

                        String fname = br.readLine();

                        dos.writeUTF(fname);

                        String msg = (String)dis.readUTF();

                        if(msg.equals("0"))

                                    System.out.println("File not present ");

                        else

                        {

                                    System.out.println("Content of the file is : \n");

                                    System.out.println(msg);

                        }

            }

}