java client side programme - swing

Question

hi friends I am creating a software in java swing where i want to exit a java software on client machine from server.i have this code bt its not working.when client runs the programme it does not opens but when i close the programme from server and client runs it agin it opens properly but its not exited from ser ver.
import java.net.*;
import java.io.*;
public class cl extends javax.swing.JFrame {
/** Creates new form cl */
public cl() {
initComponents();
}
/** 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.
*/
#SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
jLabel5 = new javax.swing.JLabel();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setBackground(new java.awt.Color(255, 204, 204));
jPanel1.setBackground(new java.awt.Color(255, 204, 204));
jLabel5.setIcon(new javax.swing.ImageIcon("C:\\Users\\Administrator\\Desktop\\new-1.jpg")); // NOI18N
jLabel1.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
jLabel1.setText("Welcome to our cafe");
jLabel2.setFont(new java.awt.Font("Arial", 1, 14)); // NOI18N
jLabel2.setText("Contact Administrator to start your session");
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel5)
.addGroup(jPanel1Layout.createParallelGroup
(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(92, 92, 92)
.addComponent(jLabel1))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(42, 42, 42)
.addComponent(jLabel2)))
.addContainerGap(872, Short.MAX_VALUE))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup
(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel5))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(32, 32, 32)
.addComponent(jLabel1)
.addGap(18, 18, 18)
.addComponent(jLabel2)))
.addContainerGap(597, Short.MAX_VALUE))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE,
javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
pack();
}// </editor-fold>
/**
* #param args the command line arguments
*/
public static void main(String args[]) {
try
{
String s1,s2;
Socket s=new Socket("192.168.1.2",1024);
DataInputStream dis=new DataInputStream(s.getInputStream());
DataOutputStream dos=new DataOutputStream(s.getOutputStream());
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
while(true)
{
s1=dis.readUTF();
if (s1.equals("5"))
{
System.exit(0);
}
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
// Variables declaration - do not modify
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel5;
private javax.swing.JPanel jPanel1;
// End of variables declaration
}

Answer 1

Your socket is staying open.
You should probably put an s.close(); before your System.exit(0);
Also dis.close(); and dos.close(); (before s.close();).