[android-beginners] Trying to Download a Web Page Using java.net

[JohneC]

Hi!!!!!!!!!!!!!!! I am trying to download a web page using the
java.net library. My code is as follows:

package net.android.TrafficGenerator2;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class TrafficGenerator2 extends Activity {
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.main);
                TextView tv = new TextView(this);
                tv.append("Hello, Android\n");
                setContentView(tv);

                URL u = null;
                try {
                        u = new URL("http://www.msnbc.com";);
                } catch (MalformedURLException e) {
                        tv.append("Error 1\n");
                        setContentView(tv);
                }
                URLConnection cn = null;
                try {
                        cn = u.openConnection();
                } catch (IOException e) {
                        tv.append("Error 2\n");
                        setContentView(tv);
                }

                cn.setDoInput(true);
                tv.append("Content type: " + cn.getContentType() + "; Use 
Caches: "
+ cn.getUseCaches() + "; Date: " + cn.getDate() + "; Content Length: "
+ cn.getContentLength() + ";\n");

                InputStream is = null;
                try {
                        is = cn.getInputStream();
                } catch (IOException e) {
                        tv.append("Error 3a\n");
                        setContentView(tv);
                }

                InputStreamReader isr = null;
                try {
                        isr = new InputStreamReader(is);
                } catch (NullPointerException e2) {
                        tv.append("Error 3b\n");
                        setContentView(tv);
                }

                BufferedReader file = null;
                try {
                        file = new BufferedReader(isr);
                }
                catch(NullPointerException e3) {
                        tv.append("Error 3c\n");
                        setContentView(tv);
                }

                if(file == null)
                {
                        tv.append("Null\n");
                        setContentView(tv);

                }
                else
                {
                        tv.append("Not Null\n");
                        setContentView(tv);

                }

        }
}

I get output of length of -1, and Error3a, Error3b, Error3c, and Null
as output. Why????????? similar code works well on a pc.

Thanks...............

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