client.java

Small chat on Java. works good

/*
 * Client.java
 *
 * Created on 12 Апрель 2009 г., 13:38
 */

package javaapplication2;
import java.io.*;
import java.net.*;

public class Client extends javax.swing.JFrame implements Runnable {
    
 Socket clientSocket = null;
    PrintStream os = null;
    DataInputStream is = null;
    BufferedReader inputLine = null;
    boolean closed = false;
     public  boolean ok=false;
    Client c;
    public Client() {
        initComponents();
         
    }
    
    public Client( PrintStream o,DataInputStream i,javax.swing.JTextArea M,javax.swing.JTextField T,boolean ok1)
    {
     is=i;
     os=o;
     Mes=M;
     text=T;
     ok=ok1;
    }
    
    
    public void run() {		
	String responseLine="";
	try{
	    while ((responseLine = is.readLine()) != null) {
            if (true) {print(responseLine); ok=false; }
		if (responseLine.indexOf("*** Bye") != -1) break;
	    }
            closed=true;}
        catch (IOException e) {
	    System.err.println("IOException:  " + e);
        	} 
    }
    
    public  void print(String a) 
    {
       Mes.setText(Mes.getText()+"\n"+a);  
    
    }
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        Host = new javax.swing.JTextField();
        Port = new javax.swing.JTextField();
        Connect = new javax.swing.JButton();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        Mes = new javax.swing.JTextArea();
        text = new javax.swing.JTextField();
        Send = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        Host.setText("localhost");

        Port.setText("8111");

        Connect.setText("Connect");
        Connect.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                ConnectActionPerformed(evt);
            }
        });

        jLabel1.setText("Host");

        jLabel2.setText("Port");

        Mes.setColumns(20);
        Mes.setEditable(false);
        Mes.setRows(5);
        jScrollPane1.setViewportView(Mes);

        text.setText("text");

        Send.setText("Send");
        Send.setFocusCycleRoot(true);
        Send.setSelected(true);
        Send.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                SendActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addGap(2, 2, 2)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(text, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 329, Short.MAX_VALUE)
                    .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                        .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 329, Short.MAX_VALUE)
                        .addGroup(layout.createSequentialGroup()
                            .addComponent(Host, javax.swing.GroupLayout.PREFERRED_SIZE, 85, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(18, 18, 18)
                            .addComponent(jLabel2)
                            .addGap(2, 2, 2)
                            .addComponent(Port, javax.swing.GroupLayout.PREFERRED_SIZE, 34, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(18, 18, 18)
                            .addComponent(Connect))))
                .addContainerGap(37, Short.MAX_VALUE))
            .addGroup(layout.createSequentialGroup()
                .addGap(168, 168, 168)
                .addComponent(Send)
                .addContainerGap(175, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(Host, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel1)
                    .addComponent(Port, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel2)
                    .addComponent(Connect))
                .addGap(18, 18, 18)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 171, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(text, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 11, Short.MAX_VALUE)
                .addComponent(Send)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void SendActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_SendActionPerformed
        //c.ok=true;      
        os.println(text.getText());
        text.setText("");
            
}//GEN-LAST:event_SendActionPerformed

    private void ConnectActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_ConnectActionPerformed
           Connect.setEnabled(false);
            int port_number=Integer.parseInt(Port.getText());
            String host=Host.getText();
            try {
            clientSocket = new Socket(host, port_number);
          //  inputLine = new BufferedReader(new InputStreamReader(text));
            os = new PrintStream(clientSocket.getOutputStream());
            is = new DataInputStream(clientSocket.getInputStream());
        } catch (UnknownHostException e) {
            print("Don't know about host "+host);
        } catch (IOException e) {
            print("Couldn't get I/O for the connection to the host "+host);
        }
            
         // print("Connected");
          
          c = new Client(os,is,Mes,text,false);
          new Thread(c).start();
            
            
    }//GEN-LAST:event_ConnectActionPerformed
    
    
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Client().setVisible(true);
            }
        });
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton Connect;
    private javax.swing.JTextField Host;
    private javax.swing.JTextArea Mes;
    private javax.swing.JTextField Port;
    private javax.swing.JButton Send;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextField text;
    // End of variables declaration//GEN-END:variables
    
}


/*class StartClient extends Thread 
{

public StartClient()
{


}


 public void run() {		
	String responseLine;
	try{ 
	    while ((responseLine = is.readLine()) != null) {
		Client.print(responseLine);
		if (responseLine.indexOf("*** Bye") != -1) break;
	    }
            closed=true;
	} catch (IOException e) {
	    System.err.println("IOException:  " + e);
	}
    }


}*/