data exchange betweem client server using sockets

How To integrate random number generater in the server code and print those when requested by client.
Here are my client and server codes.When client requests getdata..the server should send 8 random numbers and client should be able to see that and display them.can anybody integrate the random number generator in my server code and make it work.

Server code::
---------------------------------------
import java.net.*;
import java.io.*;

public class Server
{
      public Server()
      {
            try
            {
                  //creating server socket binding at port # 3000
                  ServerSocket server=new ServerSocket(3000);
                  System.out.println("Server binded at "+((server.getInetAddress()).getLocalHost()).getHostAddress()+":3000");
                  System.out.println("Run the Client");
                  //ready to accept client request
                  Socket socket=server.accept();
                  //opening the input stream to read data from client connection
                  BufferedReader in= new BufferedReader(new InputStreamReader(socket.getInputStream()));
                  System.out.println(in.readLine());
                  //using output stream responsing data
                  PrintStream out=new PrintStream(socket.getOutputStream());
                  out.print("Welcome by server\n");
                  out.flush();
                  //closing the in & out streams
                  out.close();
                  in.close();
            }
            catch(Exception err)
            {
                  System.err.println("* err"+err);
            }
                  
      }
      
      public static void main(String a[])
      {
            new Server();
      }
      
}

client code
------------------------------------
import java.net.*;
import java.io.*;

public class Client
{
      
      public Client()
      {
            try
            {
                  //ceating the socket to connect to server running on same machine binded on port no 3000
                  Socket client=new Socket("localhost",3000);
                  System.out.println("Client connected ");
                  //getting the o/p stream of that connection
                  PrintStream out=new PrintStream(client.getOutputStream());
                  //sending the message to server
                  out.print("Hello from client\n");
                  out.flush();
                  //reading the response using input stream
                  BufferedReader in= new BufferedReader(new InputStreamReader(client.getInputStream()));
                  System.out.println(in.readLine());
                  //closing the streams
                  in.close();
                  out.close();
 
            }
            catch(Exception err)
            {
                  System.err.println("* err"+err);
            }
                  
      }
      
      public static void main(String a[])
      {
            new Client();
      }
      
}
prashanth_gurijalaAsked:
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objectsConnect With a Mentor Commented:
sorry, yes you'll need to cast it to an int:

out.writeInt((int)(Math.random()*10));
0
 
objectsCommented:
Use a DataOutputStrea/SDataInputStream to pass the random numbers.
something like:

import java.net.*;
import java.io.*;

public class Server
{
     public Server()
     {
          try
          {
               //creating server socket binding at port # 3000
               ServerSocket server=new ServerSocket(3000);
               System.out.println("Server binded at "+((server.getInetAddress()).getLocalHost()).getHostAddress()+":3000");
               System.out.println("Run the Client");
               //ready to accept client request
               Socket socket=server.accept();
               //opening the input stream to read data from client connection
               BufferedReader in= new BufferedReader(new InputStreamReader(socket.getInputStream()));
               System.out.println(in.readLine());
               //using output stream responsing data
               DataOutputStream out=new DataOutputStream(socket.getOutputStream());
               for (int i=0; i<8; i++)
               {
                       out.writeInt(Math.random()*10);
               }
               out.flush();
               //closing the in & out streams
               out.close();
               in.close();
          }
          catch(Exception err)
          {
               System.err.println("* err"+err);
          }
               
     }
     
     public static void main(String a[])
     {
          new Server();
     }
     
}

client code
------------------------------------
import java.net.*;
import java.io.*;

public class Client
{
     
     public Client()
     {
          try
          {
               //ceating the socket to connect to server running on same machine binded on port no 3000
               Socket client=new Socket("localhost",3000);
               System.out.println("Client connected ");
               //getting the o/p stream of that connection
               PrintStream out=new PrintStream(client.getOutputStream());
               //sending the message to server
               out.print("Hello from client\n");
               out.flush();
               //reading the response using input stream
               DataInputStream in= new DataInputStream(client.getInputStream());
               for (int i=0; i<8; i++)
               {
                  System.out.println(in.readInt());
               }
               //closing the streams
               in.close();
               out.close();
 
          }
          catch(Exception err)
          {
               System.err.println("* err"+err);
          }
               
     }
     
     public static void main(String a[])
     {
          new Client();
     }
     
}
0
 
prashanth_gurijalaAuthor Commented:
Here when generating the random number its of double type   [out.writeInt(Math.random()*10);] it say that out can't accept double type values
0
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