title: How to read .txt file into ListView?
body: <p>I am trying to read lines stored in a separate text file into my android application and have each line show up in the list view. </p>
  
  <p>The problem is that I cannot get anything to appear despite the fact my code says their are not errors in it. As you read this code, I will clarify that my ListView is named "addresslist" and the file i'm reading from is named "myaddress.txt". I appreciate any help.</p>
  
  <pre><code>ListView listView= (ListView) findViewById(R.id.addresslist); 
  try{
      InputStream instream = openFileInput("myaddress.txt");
  
      InputStreamReader inputreader = new InputStreamReader(instream);
      BufferedReader buffreader = new BufferedReader(inputreader);
  
  
      ArrayList&lt;String&gt; lines = new ArrayList&lt;String&gt;();
      boolean hasNextLine =true;
      while (hasNextLine){
          String line =  buffreader.readLine();
          lines.add(line);
          hasNextLine = line != null;
      }
  
      ArrayAdapter&lt;String&gt; adapter = new ArrayAdapter&lt;String&gt;(this,R.id.addresslist,lines);
  
      listView.setAdapter(adapter);
  
      instream.close();
  
      }
      catch(java.io.FileNotFoundException e){
  
      }catch(java.io.IOException e){
  
      }
  
  }
  </code></pre>
  
  <p>With the following errors in the log:</p>
  
  <pre><code>12-08 01:21:30.394: E/Trace(1500): [ 12-08 01:21:30.864  1500: 1500 V/Home to School 4828 N. Crescent Norridge IL 60706, 5500 N St Louis Avenue Chicago IL 60625; Home to School 4828 N. Crescent Norridge IL 60706, 5500 N St Louis Avenue Chicago IL 60625; 
  12-08 01:21:30.864: D/AndroidRuntime(1500): Shutting down VM
  12-08 01:21:30.924: W/dalvikvm(1500): threadid=1: thread exiting with uncaught exception (group=0xb3e92288)
  12-08 01:21:30.944: E/AndroidRuntime(1500): FATAL EXCEPTION: main
  12-08 01:21:30.944: E/AndroidRuntime(1500): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tripapp/com.tripapp.Frontpage}: java.lang.NullPointerException: println needs a message
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.app.ActivityThread.access$600(ActivityThread.java:130)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.os.Handler.dispatchMessage(Handler.java:99)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.os.Looper.loop(Looper.java:137)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.app.ActivityThread.main(ActivityThread.java:4745)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at java.lang.reflect.Method.invokeNative(Native Method)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at java.lang.reflect.Method.invoke(Method.java:511)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at dalvik.system.NativeStart.main(Native Method)
  12-08 01:21:30.944: E/AndroidRuntime(1500): Caused by: java.lang.NullPointerException: println needs a message
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.util.Log.println_native(Native Method)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.util.Log.v(Log.java:117)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at com.tripapp.Frontpage.onCreate(Frontpage.java:61)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.app.Activity.performCreate(Activity.java:5008)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
  12-08 01:21:30.944: E/AndroidRuntime(1500):     ... 11 more
  </code></pre>