Using throws IOException

[dushantha Rathnayake]

Hi,

I have this code.But I don't know how to call to senderEngine method. please tell me how to call to senderEngine method.

import java.io.*;
import java.net.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class senderGUI implements ActionListener{
JFrame senderGUIFrame=new JFrame();
JPanel senderGUIPanel=new JPanel();
JTextArea senderGUITArea=new JTextArea();
JScrollPane senderGUIScroll=new JScrollPane(senderGUITArea);
JButton senderGUISend=new JButton("Send");
JButton senderGUICancel=new JButton("Cancel");
static String msg="";
senderGUI(){
senderGUIFrame.setBounds(10,10,400,400);
senderGUIFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
senderGUIFrame.getContentPane().setLayout(null);
senderGUIPanel.setBounds(10,10,200,200);
senderGUIPanel.setLayout(new GridLayout(1,1));
senderGUIPanel.add(senderGUIScroll);
senderGUIFrame.getContentPane().add(senderGUIPanel);
senderGUISend.setBounds(20,250,100,30);
senderGUISend.addActionListener(this);
senderGUIFrame.getContentPane().add(senderGUISend);
senderGUICancel.setBounds(150,250,100,30);
senderGUICancel.addActionListener(this);
senderGUIFrame.getContentPane().add(senderGUICancel);
senderGUIFrame.show();
}
public static void main(String[] args){
new senderGUI();
}
public void actionPerformed(ActionEvent ev){
if(ev.getSource()==senderGUISend){
msg=senderGUITArea.getText();
senderEngine();
senderGUITArea.setText("");
}
else if(ev.getSource()==senderGUICancel){
senderGUIFrame.dispose();
}
}
public void senderEngine()throws IOException {
InetAddress addr =InetAddress.getByName(null);
//InetAddress addr = InetAdress.getByName("127.0.0.1");
//InetAddress addr = InetAdress.getByName("localhost");
System.out.println("addr = "+addr);
Socket socket=new Socket(addr,JabberServer.PORT);
try{
System.out.println("Socket = "+socket);
BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter out=new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);
String fgh=msg;
out.println(fgh);
String str = in.readLine();
//System.out.println(str);
out.println("END");
}
catch(Exception er){
System.out.println(er);
//socket.close();
}
}
}

Thank you.

[Vijitha Kumara]

 

dushantha Rathnayake wrote:I have this code.But I don't know how to call to senderEngine method. please tell me how to call to senderEngine method...

Calling method should catch any checked exceptions (in this case IOException is a checked exception) thrown by the called method or propagate them to the next level by throwing them to the caller of itself. That depends on the usage of the method.
Example of handling the exception:

<YourMethod>(){
try{
<call "senderEngine" method>
}catch(IOException ex){
// what to do with the exception
}
}