Results 1 to 4 of 4
  1. #1
    gan5016 is offline Member
    Join Date
    Aug 2009
    Posts
    18
    Rep Power
    0

    Default Applet vs application

    Anyone knows is a java applet can control an java application which able to write a text file.
    Actually what i need is to change the .txt file contents in the same folder by applet.Let say the user type something on the applet and i want the text to be saved in my folder.
    I had tried to use the write file method which has to sign the applet.But this seem like very hard to be done.
    Any idea....:)
    Thanks..

  2. #2
    mtyoung is offline Senior Member
    Join Date
    Dec 2008
    Location
    Hong Kong
    Posts
    473
    Rep Power
    10

    Default

    method to sign jar

    from Deploying Software with JNLP and Java Web Start

    1) First, create the JAR file:
    jar cf JNLPTime.jar TheTime.class
    2) Second, create a key in the keystore (or use one you already have). You'll be prompted for information like first name and last. You should at least fill in that information.
    keytool -genkey -keystore myKeys -alias jdc
    3) Third, sign the JAR. Be sure to remember your password from the previous step.
    jarsigner -keystore myKeys JNLPTime.jar jdc

    keytool, jarsigner, jar should find in your jdk/bin/

  3. #3
    gan5016 is offline Member
    Join Date
    Aug 2009
    Posts
    18
    Rep Power
    0

    Default

    Thanks a lots..

  4. #4
    gan5016 is offline Member
    Join Date
    Aug 2009
    Posts
    18
    Rep Power
    0

    Default

    i try the jarsigner things by compiling the following file,
    then create jar file , keystore and follow with the jarsigner but it doesnt work,
    for the keystore should i create my own one?im using others that found online...


    public class write1 extends JApplet implements ActionListener
    {
    String yy = "asdasdada";
    JButton jb1;
    public void init()
    {
    Container c = getContentPane();
    c.setLayout ( new FlowLayout(FlowLayout.LEFT, 20, 20) );
    jb1 = new JButton("Blast");
    jb1.addActionListener(this);
    c.add(jb1);
    }
    public void actionPerformed(ActionEvent evt)
    {
    if (evt.getSource()==jb1)
    {

    try
    {

    Writer output1 = null;
    String out1 = "this is to try 0ut th things";
    File file1 = new File("G://writefileresult.txt");//write file
    output1 = new BufferedWriter(new FileWriter(file1,true));
    output1.write(out1);
    output1.close();
    }
    catch(IOException iox)
    {
    System.out.println("File read error...");
    iox.printStackTrace();
    }

    }
    }
    }

Similar Threads

  1. [SOLVED] Application -> Applet
    By Ypsilon IV in forum Java Applets
    Replies: 2
    Last Post: 04-25-2009, 09:26 PM
  2. convert application to applet in netbeans
    By dbashby in forum New To Java
    Replies: 7
    Last Post: 04-18-2009, 04:49 AM
  3. Applet to Application (Game)
    By AndrewM16921 in forum Java Applets
    Replies: 3
    Last Post: 04-12-2009, 01:24 PM
  4. starting a Swing application from an applet
    By FakeRabbit in forum Java Applets
    Replies: 9
    Last Post: 09-21-2008, 08:00 PM
  5. Replies: 1
    Last Post: 07-06-2007, 06:21 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •