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Button handling and display of data in JAVA

Posted on 2004-10-06
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Last Modified: 2010-03-31
The objective of my clients server program is upon connecting to the server , client should get some weather data and it should display them ..It was sucessful in doing that.But, now I have added a button get weather info and tried to get the data which is sent by my server into the textboxes on client side.But, now I am unable to display the data.Can any one add the code  and do it.

My server code:
------------------------------------------------------------
Server..
--------------------
import java.net.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Server extends JFrame
{


     private JTextField textConnection;
     private JLabel labelConnection;
     Container container = null;


     public Server()

     {

           container = getContentPane() ;
           container.setLayout(new FlowLayout());

           labelConnection = new JLabel("Connection ") ;
           container.add(labelConnection );
           textConnection = new JTextField(15) ;
           container.add(textConnection);
           textConnection.setText("Disconnected");

          setSize ( 200,400) ;
          setVisible(true);

          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();
               textConnection.cut();
               textConnection.setText("Connected\n");


               //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());
               while (true)
               {
                  for (int i=0; i<8; i++)
                  {
                      int s =(int)(Math.random()*10);
                      out.writeInt((s*10)+20);
                  }
                  out.flush();
               }
               //closing the in & out streams
                  //out.close
            //   in.close();
          }
          catch(Exception err)
          {
               System.err.println("* err"+err);
               textConnection.cut();
               textConnection.setText("Disconnected\n");
          }

     }

     public static void main(String a[])
     {
          new Server();
     }

}

Client
----------------------------------------------------------------------
import java.net.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Client extends JFrame

{
     private JTextField textZipcode,textsky,texttemp,texthumidity,textwindspeed,textbarometer,textdew,textheat,textvisibility;
     private JLabel labelZipcode,labelsky,labeltemp,labelhumidity,labelwindspeed,labelbarometer,labeldew,labelheat,labelvisibility;
      private JButton buttonWeather;


     public Client()
     {
                    Container container = getContentPane() ;
                    container.setLayout(new FlowLayout());


                    labelZipcode = new JLabel("ZipCode ") ;
                     container.add(labelZipcode );
                     textZipcode = new JTextField(15) ;
                    container.add(textZipcode);


                    buttonWeather = new JButton(" Get Weather Info ");
                  container.add(buttonWeather) ;


                     labelsky = new JLabel("Sky ") ;
                     container.add(labelsky );
                     textsky = new JTextField(15) ;
                    container.add(textsky);


                    labeltemp = new JLabel("Temp ") ;
                    container.add(labeltemp );
                    texttemp = new JTextField(15) ;
                    container.add(texttemp );



                    labelhumidity = new JLabel("Humidity ") ;
                    container.add(labelhumidity );
                    texthumidity = new JTextField(15) ;
                    container.add(texthumidity );

                    labelwindspeed = new JLabel("Wind speed ") ;
                    container.add(labelwindspeed );
                    textwindspeed = new JTextField(15) ;
                    container.add(textwindspeed );

                    labelbarometer = new JLabel("Barometer ") ;
                    container.add(labelbarometer );
                    textbarometer = new JTextField(15) ;
                    container.add(textbarometer );

                    labeldew = new JLabel("Dew ") ;
                    container.add(labeldew );
                    textdew = new JTextField(15) ;
                    container.add(textdew );

                    labelheat = new JLabel("Heat ") ;
                    container.add(labelheat );
                    textheat = new JTextField(15) ;
                    container.add(textheat );

                    labelvisibility = new JLabel("Visibillity ") ;
                    container.add(labelvisibility );
                    textvisibility = new JTextField(15) ;
                    container.add(textvisibility );



                    setSize ( 200,600) ;
                    setVisible(true);


// Event handler for handing the button events
          ButtonHandler handler = new ButtonHandler();
          buttonWeather.addActionListener( handler );

     }

          // Button Click Event Handler
           class ButtonHandler implements ActionListener
           {
                public void actionPerformed(ActionEvent event)
                {
                     // After pressing show Status, varios checks and the final message is built
                     if (event.getSource() == buttonWeather)
                     {
                              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());
               while (true)
               {
                       if(in.readInt()>20 && in.readInt()<40)
                  textsky.setText("Sky Condition: "+"Clear");
                         if(in.readInt()>40 && in.readInt()<80)
                      textsky.setText("Sky Condition: "+"Partly Cloudy");
                           else
                      textsky.setText("Sky Condition: "+"Cloudy");
                  texttemp.setText("Temperature: "+in.readInt());
                  texthumidity.setText("Humidity: "+in.readInt());
                  textwindspeed.setText("Wind Speed: "+in.readInt());
                  textbarometer.setText("Barometer: "+in.readInt());
                  textdew.setText("Dewpoint: "+in.readInt());
                  textheat.setText("Heat Index: "+in.readInt());
                  textvisibility.setText("Visibility: "+in.readInt());
                  Thread.sleep(5000);
               }

               //closing the streams
               //in.close();
               //out.close();

          }
          catch(Exception err)
          {
               System.err.println("* err"+err);
          }
                     }

               }

          }

     public static void main(String a[])
     {
          new Client();
     }

}
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Question by:prashanth_gurijala
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1 Comment
 
LVL 2

Accepted Solution

by:
ThummalaRaghuveer earned 500 total points
ID: 12244922
May be this code at Client will do


import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.net.Socket;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;

public class Client extends JFrame

{
      private JTextField textZipcode, textsky, texttemp, texthumidity,
                  textwindspeed, textbarometer, textdew, textheat, textvisibility;

      private JLabel labelZipcode, labelsky, labeltemp, labelhumidity,
                  labelwindspeed, labelbarometer, labeldew, labelheat,
                  labelvisibility;

      private JButton buttonWeather;
      DataInputStream in = null;
      private boolean getWeather = false;

      public Client() {
            Container container = getContentPane();
            container.setLayout(new FlowLayout());

            labelZipcode = new JLabel("ZipCode ");
            container.add(labelZipcode);
            textZipcode = new JTextField(15);
            container.add(textZipcode);

            buttonWeather = new JButton(" Get Weather Info ");
            container.add(buttonWeather);

            labelsky = new JLabel("Sky ");
            container.add(labelsky);
            textsky = new JTextField(15);
            container.add(textsky);

            labeltemp = new JLabel("Temp ");
            container.add(labeltemp);
            texttemp = new JTextField(15);
            container.add(texttemp);

            labelhumidity = new JLabel("Humidity ");
            container.add(labelhumidity);
            texthumidity = new JTextField(15);
            container.add(texthumidity);

            labelwindspeed = new JLabel("Wind speed ");
            container.add(labelwindspeed);
            textwindspeed = new JTextField(15);
            container.add(textwindspeed);

            labelbarometer = new JLabel("Barometer ");
            container.add(labelbarometer);
            textbarometer = new JTextField(15);
            container.add(textbarometer);

            labeldew = new JLabel("Dew ");
            container.add(labeldew);
            textdew = new JTextField(15);
            container.add(textdew);

            labelheat = new JLabel("Heat ");
            container.add(labelheat);
            textheat = new JTextField(15);
            container.add(textheat);

            labelvisibility = new JLabel("Visibillity ");
            container.add(labelvisibility);
            textvisibility = new JTextField(15);
            container.add(textvisibility);

            setSize(200, 600);
            setVisible(true);

            // Event handler for handing the button events
            ButtonHandler handler = new ButtonHandler();
            buttonWeather.addActionListener(handler);

      }
      
      public void getWeather() throws IOException {
            while (true) {
                  if(getWeather) {
                  int t1 = in.readInt();
                  int t2 = in.readInt();
                  int t3 = in.readInt();
                  int t4 = in.readInt();
                  System.out.println("Received "+t1+" "+t2+" "+t3+" "+t4);
                  if (t1 > 20 && t2 < 40){
                        
                        System.out.println("in 1");
                        textsky.setText("Sky Condition: " + "Clear");
                  }
                  if (t3 > 40 && t4 < 80) {
                        textsky
                                    .setText("Sky Condition: "
                                                + "Partly Cloudy");
                        System.out.println("in 2");
                  }
                  else{
                        textsky.setText("Sky Condition: " + "Cloudy");
                        System.out.println("in 3");
                  }
                  texttemp.cut();
                  texttemp.setText("Temperature: " + in.readInt()+"\n");
                  //texttemp.setText("Temperature:");
                  System.out.println("In last");
                  texthumidity.setText("Humidity: " + in.readInt());
                  textwindspeed.setText("Wind Speed: " + in.readInt());
                  textbarometer.setText("Barometer: " + in.readInt());
                  textdew.setText("Dewpoint: " + in.readInt());
                  textheat.setText("Heat Index: " + in.readInt());
                  textvisibility.setText("Visibility: " + in.readInt());
                  try {
                        Thread.sleep(5000);
                  } catch (InterruptedException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                  }
                  }
            }
      }

      // Button Click Event Handler
      class ButtonHandler implements ActionListener {
            public void actionPerformed(ActionEvent event) {
                  // After pressing show Status, varios checks and the final message
                  // is built
                  if (event.getSource() == buttonWeather) {
                        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
                              in = new DataInputStream(client
                                          .getInputStream());
                              //System.out.println("haha.."+in.readInt());
                              


                              //closing the streams
                              //in.close();
                              //out.close();
                              getWeather = true;

                        } catch (Exception err) {
                              System.err.println("* err" + err);
                        }
                  }

            }

      }

      public static void main(String a[]) {
            Client abc = new Client();
            try {
                  abc.getWeather();
            } catch (IOException e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
            }

      }

}
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