How to solve ConnectionNotFoundException in JavaME - netbeans

Question

I'm trying to connect to the internet via my J2ME application on my Netbeans emulator with the following function which connects to a webpage and prints out its HTML using System.out.println().
function getHTML(String url)
{
HttpConnection httpConn = null;
InputStream is = null;
OutputStream os = null;
try
{
httpConn = (HttpConnection)Connector.open(url);
int respCode = httpConn.getResponseCode();
if (respCode == httpConn.HTTP_OK)
{
StringBuffer sb = new StringBuffer();
os = httpConn.openOutputStream();
is = httpConn.openDataInputStream();
int chr;
while ((chr = is.read()) != -1)
sb.append((char) chr);
System.out.println(sb.toString());
os.close();
is.close();
}
else
{
System.out.println("Error " + respCode);
}
httpConn.close();
}
catch(IOException ioex)
{
ioex.printStackTrace();
}
}
But I've been getting the following error;
javax.microedition.io.ConnectionNotFoundException: error 10051 in socket::open
at com.sun.midp.io.j2me.socket.Protocol.open0(), bci=0
at com.sun.midp.io.j2me.socket.Protocol.connect(), bci=209
at com.sun.midp.io.j2me.socket.Protocol.open(), bci=216
at com.sun.midp.io.j2me.socket.Protocol.openPrim(), bci=4
at com.sun.midp.io.j2me.http.Protocol.createConnection(), bci=41
at com.sun.midp.io.j2me.http.Protocol.connect(), bci=41
at com.sun.midp.io.j2me.http.Protocol.streamConnect(), bci=164
at com.sun.midp.io.j2me.http.Protocol.startRequest(), bci=7
at com.sun.midp.io.j2me.http.Protocol.sendRequest(), bci=33
at com.sun.midp.io.j2me.http.Protocol.sendRequest(), bci=3
at com.sun.midp.io.j2me.http.Protocol.getResponseCode(), bci=5
I know my code isn't the problem because this used to work on my old laptop, but it hasn't worked since I installed Netbeans on my new laptop. Is it because of my internet connection, or my firewall settings, or my settings in Netbeans, or did I just not install Netbeans properly?

Answer 1

If you want to send some data and receive means then try the coding
try
{
httpConn = (HttpConnection)Connector.open(url);
os = httpConn.openOutputStream();
//Writing data to os
os.write(b); //Here b is a byte array
os.flush();
int respCode = httpConn.getResponseCode();
if (respCode == httpConn.HTTP_OK)
{
StringBuffer sb = new StringBuffer();
is = httpConn.openDataInputStream();
int chr;
while ((chr = is.read()) != -1)
sb.append((char) chr);
System.out.println(sb.toString());
}
else
{
System.out.println("Error " + respCode);
}
}
catch(IOException ioex)
{
ioex.printStackTrace();
}
if(os!=null) os.close();
if(is!=null) is.close();
if(httpConn!=null) httpConn.close();
os=null;is=null;httpConn=null;
}