How to send string data through socket!

Question

Is there any method to send string data over socket.
and if client send string data to server,
How to get that data in server?
Comments please!

Answer 1

Thank for your kind answer, stoopidboi.
I solved the ploblem. ^^;
I open the source code ^^; wow~~~~~!
It will useful to many people. I spend almost 3 days to solve this problem.
The program works like this.
Client side // string data ------------------------> Server side // saving file
To
< Server Side >
* Server.java
* Auther : [email protected]
import java.io.*;
import java.net.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Server extends JFrame
     private JTextField enter;
     private JTextArea display;
     ObjectInputStream input;
     DataOutputStream output;
     FileOutputStream resultFile;
     DataInputStream inputd;
     public Server(){
          super("Server");
          Container c = getContentPane();
          enter = new JTextField();
          enter.setEnabled(false);
          enter.addActionListener(
               new ActionListener(){
                    public void actionPerformed(ActionEvent ev){
                         //None
          c.add(enter, BorderLayout.NORTH);
          display = new JTextArea();
          c.add(new JScrollPane(display),
                 BorderLayout.CENTER);
          setSize(300, 150);
          show();
     public void runServer(){
          ServerSocket server;
          Socket connection;
          int counter = 1;
          display.setText("");
          try{
               server = new ServerSocket(8800, 100);
               while(true){
                    display.append("Waiting for connection\n");
                    connection = server.accept();
                    display.append( counter + " connection is ok.\n");
                    display.append("Connection " + counter +
                         "received from: " + connection.getInetAddress().getHostName());
                    resultFile = new FileOutputStream("hi.txt");
                    output = new DataOutputStream(resultFile);
                    output.flush();
                    inputd = new DataInputStream(
                         connection.getInputStream()
                    display.append("\nGod I/O stream, I/O is opened\n");
                    enter.setEnabled(true);
                    try{
                         while(true){
                              output.write(inputd.readByte());
                    catch(NullPointerException e){
                         display.append("Null pointer Exception");
                    catch(IOException e){
                         display.append("\nIOException Occured!");
                    if(resultFile != null){
                         resultFile.flush();
                         resultFile.close();
                    display.append("\nUser Terminate connection");
                    enter.setEnabled(false);
                    resultFile.close();
                    inputd.close();
                    output.close();
                    connection.close();
                    ++counter;
          catch(EOFException eof){
               System.out.println("Client Terminate Connection");
          catch(IOException io){
               io.printStackTrace();
          display.append("File is created!");
     public static void main(String[] args){
          Server app = new Server();
          app.addWindowListener(
               new WindowAdapter(){
                    public void windowClosing(WindowEvent e){
                         System.exit(0);
          app.runServer();
< Client side >
* Client.java
* Auther : [email protected]
package Client;
import java.io.*;
import java.net.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Client extends JFrame
     private JTextField enter;
     private JTextArea display;
     DataOutputStream output;
     String message = "";
     public Client(){
          super("Client");
          Container c = getContentPane();
          enter = new JTextField();
          enter.setEnabled(false);
          enter.addActionListener(
               new ActionListener(){
                    public void actionPerformed(ActionEvent e){
                         //None
          c.add(enter, BorderLayout.NORTH);
          display = new JTextArea();
          c.add(new JScrollPane(display), BorderLayout.CENTER);
          message = message + "TT0102LO12312OB23423PO2323123423423423423" +
                    "MO234234LS2423346234LM2342341234ME23423423RQ12313123213" +
                    "SR234234234234IU234234234234OR12312312WQ123123123XD1231232" +
               "Addednewlinehere\nwowowowwoww";
          setSize(300, 150);
          show();
     public void runClient(){
          Socket client;
          try{
               display.setText("Attemption Connection...\n");
               client = new Socket(InetAddress.getByName("127.0.0.1"), 8800);
               display.append("Connected to : = " +
                      client.getInetAddress().getHostName());
               output = new DataOutputStream(
                    client.getOutputStream()
               output.flush();
               display.append("\nGot I/O Stream, Stream is opened!\n");
               enter.setEnabled(true);
               try{
                    output.writeBytes(message);
               catch(IOException ev){
                    display.append("\nIOException occured!\n");
               if(output != null) output.flush();
               display.append("Closing connection.\n");
               output.close();
               client.close();
          catch(IOException ioe){
               ioe.printStackTrace();
     public static void main(String[] args){
          Client app = new Client();
          app.addWindowListener(
               new WindowAdapter(){
                    public void windowClosing(WindowEvent e){
                         System.exit(0);
          app.runClient();