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Java Warning Message

Discussion in 'Java' started by reev007, Jul 23, 2012.

  1. reev007

    reev007 New Member

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    hello all, I have a problem with my program in java netBeans...
    I created an IP monitoring program and there will be a "warning message" when there is a change of IP. This is a program that I created:
    Code:
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
            // TODO add your handling code here:
            try{
    InetAddress minta= InetAddress.getLocalHost();
    jTextField1.setText(minta.getHostAddress());
    jTextField2.setText(minta.getHostName());
    FileWriter fstream = new FileWriter("List_IP.txt");
    PrintWriter out = new PrintWriter(fstream);
    out.write(minta.getHostAddress());
    out.close();
    		}catch (IOException e){//Catch exception if any
    			System.err.println("Error: " + e.getMessage());
    
    program detects the IP and then save the file "txt".
    program runs automatically, and when the IP changes, the program will give "warning message". I was wondering how to make it .. anyone can help me? pleaseee ......
     
    Last edited by a moderator: Jul 23, 2012
  2. ManzZup

    ManzZup New Member

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    make a daemon thread to monitor the change of IP
    if any change that thread calls a the main program to notify of the change
     

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