Databases
StackOverflow2013
Postsdbo
POAndroid:Runtime exception in thread
Body
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAndroid:Runtime exception in thread
    text
    copied!<p>i am building an android application which involves reading text from a file and some actions on them.I am doing it using a thread(i pass the input stream object (in) to the thread(AsyncTask)). I have successfully extracted patterns from the file but error occurs(in the debug mode) in the following line where i convert ArrayList to String array.. </p> <pre><code>String[] str=a.toArray(new String[a.size()]); </code></pre> <p>my code is(inside doInBackground):</p> <pre><code>BufferedReader br = new BufferedReader(new InputStreamReader(in)); String strLine; while ((strLine = br.readLine()) != null) { Matcher m = MY_PATTERN.matcher(strLine); a = new ArrayList&lt;String&gt;(); while (m.find()) { a.add(m.group(1)); // s now contains "BAR" } String[] str=a.toArray(new String[a.size()]);//ERROR STEP double ltdo=(Math.round(Double.parseDouble(lt)*100.0)/100.0); double lodo=(Math.round(Double.parseDouble(lo)*100.0)/100.0); } </code></pre> <p>My catlog error is:</p> <pre><code>08-15 16:38:12.980: I/global(384): Default buffer size used in BufferedReader constructor. It would be better to be explicit if an 8k-char buffer is required. 08-15 16:38:52.972: W/dalvikvm(384): threadid=8: thread exiting with uncaught exception (group=0x4001d800) 08-15 16:38:53.360: E/AndroidRuntime(384): FATAL EXCEPTION: AsyncTask #1 08-15 16:38:53.360: E/AndroidRuntime(384): java.lang.RuntimeException: An error occured while executing doInBackground() 08-15 16:38:53.360: E/AndroidRuntime(384): at android.os.AsyncTask$3.done(AsyncTask.java:200) 08-15 16:38:53.360: E/AndroidRuntime(384): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) 08-15 16:38:53.360: E/AndroidRuntime(384): at java.util.concurrent.FutureTask.setException(FutureTask.java:124) 08-15 16:38:53.360: E/AndroidRuntime(384): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) 08-15 16:38:53.360: E/AndroidRuntime(384): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 08-15 16:38:53.360: E/AndroidRuntime(384): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068) 08-15 16:38:53.360: E/AndroidRuntime(384): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561) 08-15 16:38:53.360: E/AndroidRuntime(384): at java.lang.Thread.run(Thread.java:1096) 08-15 16:38:53.360: E/AndroidRuntime(384): Caused by: java.lang.NullPointerException 08-15 16:38:53.360: E/AndroidRuntime(384): at org.apache.harmony.luni.util.FloatingPointParser.parseDouble(FloatingPointParser.java:263) 08-15 16:38:53.360: E/AndroidRuntime(384): at java.lang.Double.parseDouble(Double.java:287) 08-15 16:38:53.360: E/AndroidRuntime(384): at my.GPS.FindLocation.doInBackground(FindLocation.java:67) 08-15 16:38:53.360: E/AndroidRuntime(384): at my.GPS.FindLocation.doInBackground(FindLocation.java:1) 08-15 16:38:53.360: E/AndroidRuntime(384): at android.os.AsyncTask$2.call(AsyncTask.java:185) 08-15 16:38:53.360: E/AndroidRuntime(384): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 08-15 16:38:53.360: E/AndroidRuntime(384): ... 4 more </code></pre>
 

Querying!

 
Guidance
An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload