How to set TextArea after getting it's value from CGI script

Hi,
I hope you all will be fine. Actually when user press send command on form2, a method called that get value from CGI script. When i try to set it's value like

Code:

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txtArea2.settext(b.toString());

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i got null pointer exception. If i use System.out.println it worked means the value is printing on console but i want the value comes in txtArea2 on form2. Here is the code

Code:

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        form1.addComponent(sms);
        form1.addComponent(internet);
 
        form1.addCommand(cmdSelect);
        form1.addCommand(cmdExit);

        form1.addCommandListener(this);
        form1.setTransitionInAnimator(CommonTransitions.createSlide(CommonTransitions.SLIDE_HORIZONTAL, true, 1000));

        //Setup Form 2
        form2 = new Form("Form 2");
 
        //set Form layout
        form2.setLayout(new BoxLayout(BoxLayout.Y_AXIS));

        //Create container that holds component and set its layout
//        Container textBoxContainer = new Container(new BoxLayout(BoxLayout.Y_AXIS));

        //create text Area
        txtArea1 = new TextArea("", 2, 10, TextArea.ANY);
        txtArea1.setEditable(true);
        txtArea1.setGrowByContent(true);
        txtArea1.getStyle().setBorder(Border.createLineBorder(2));
        txtArea1.setFocusable(true);

          //create text Area2
        txtArea2 = new TextArea(2, 5, TextArea.ANY);
        txtArea2.setEditable(false);
     
        form2.addCommand(cmdSend);
        form2.addCommand(cmdBack);

        form2.addCommandListener(this);

        form2.addComponent(txtArea1);
        form2.addComponent(txtArea2);

        form2.setTransitionInAnimator(Transition3D.createCube(1000, true));
        form1.show();
    }
   
    public void actionPerformed(ActionEvent evt) {

        if ((sms.isEnabled()) && (sms.hasFocus()) ){
            form2.show();
        }
                //check which command cliked
                if (evt.getCommand()==cmdExit) {
                        notifyDestroyed();
                //} else if (evt.getCommand()==cmdSelect) {
              //} else if ( (sms.isEnabled()) || (((evt.getCommand()==cmdSelect) && (sms.hasFocus()))) ) {
              } else if ((((evt.getCommand()==cmdSelect) && (sms.hasFocus()))) ) {
                        form2.show();


                } else if (evt.getCommand()==cmdBack) {
                        form1.show();
                } else if (evt.getCommand()==cmdSend) {
                    //form2.setFocusable(true);
                    String text = txtArea1.getText();
                    System.out.println("txtArea1 contain this text: " + text);

                    try{
                        //new SendDataToCGI().getData();
                        getGrade("http://10.120.10.24/cgi-bin/http.cgi?cmd=baasit");
                    } catch(IOException e){
                        e.printStackTrace();
                    }
                 


                }
    }

      void getGrade(String url) throws IOException {
      HttpConnection c = null;
      InputStream is = null;
      OutputStream os = null;
      StringBuffer b = new StringBuffer();
      //TextBox t = null;
      try {
        c = (HttpConnection)Connector.open(url);
        c.setRequestMethod(HttpConnection.GET);
        c.setRequestProperty("CONTENT-TYPE","application/x-www-form-urlencoded");
        c.setRequestProperty("User-Agent","Profile/MIDP-1.0 Confirguration/CLDC-1.0");
        c.setRequestProperty("Content-Language", "en-CA");
        os = c.openOutputStream();

        // send input
        String str = "name=182016";
        byte postmsg[] = str.getBytes();
        for(int i=0;i<postmsg.length;i++) {
            os.write(postmsg[i]);
        }
        os.flush();
        is = c.openDataInputStream();
        int ch;
        // receive output
        while ((ch = is.read()) != -1) {
            b.append((char) ch);
            System.out.println((char)ch);
        }

        System.out.println("after while loo: " + b.toString());
        txtArea2.setText("Hi am good");
        //form2.addComponent(new Label(b.toString()));
        //form2.show();
        // t = new TextBox("Final Grades", b.toString(), 1024, 0);
        // form2.addComponent(t);
      } finally {
        if(is!= null) {
            is.close();
        }
        if(os != null) {
            os.close();
        }
        if(c != null) {
            c.close();
        }
      }
    // form2.show();
      //display.setCurrent(t);
  }

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Here is the exception

Code:

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I am in ChooseOptions2
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after while loo: atif rehman
TRACE: <at java.lang.NullPointerException:  0>, startApp threw an Exception
java.lang.NullPointerException:  0
        at ChooseOptions2.getGrade(ChooseOptions2.java:371)
        at ChooseOptions2.startApp(ChooseOptions2.java:63)
        at javax.microedition.midlet.MIDletTunnelImpl.callStartApp(), bci=1
        at com.sun.midp.midlet.MIDletPeer.startApp(), bci=7
        at com.sun.midp.midlet.MIDletStateHandler.startSuite(), bci=269
        at com.sun.midp.main.AbstractMIDletSuiteLoader.startSuite(), bci=52
        at com.sun.midp.main.CldcMIDletSuiteLoader.startSuite(), bci=8
        at com.sun.midp.main.AbstractMIDletSuiteLoader.runMIDletSuite(), bci=161
        at com.sun.midp.main.AppIsolateMIDletSuiteLoader.main(), bci=26
java.lang.NullPointerException:  0
        at ChooseOptions2.getGrade(ChooseOptions2.java:371)
        at ChooseOptions2.startApp(ChooseOptions2.java:63)
        at javax.microedition.midlet.MIDletTunnelImpl.callStartApp(), bci=1
        at com.sun.midp.midlet.MIDletPeer.startApp(), bci=7
        at com.sun.midp.midlet.MIDletStateHandler.startSuite(), bci=269
        at com.sun.midp.main.AbstractMIDletSuiteLoader.startSuite(), bci=52
        at com.sun.midp.main.CldcMIDletSuiteLoader.startSuite(), bci=8
        at com.sun.midp.main.AbstractMIDletSuiteLoader.runMIDletSuite(), bci=161
        at com.sun.midp.main.AppIsolateMIDletSuiteLoader.main(), bci=26

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when i use System.out.println, the code works fine but form1 is shown after code runs. I want that form2 remain there and value is shown in txtArea2.
How can i do this please guide me

Thanks

Hey sorry i sort out the problem actually i calling it from two places that's why i was getting null.

Thanks