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POAndroid/Java - Random Read line not changing
 

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    <p>My text file contains a known number of lines (the first line of the file is the number of lines). I want to randomly read a line from the file - to do this I use <code>LineNumberReader</code>. The problem is, that it doesn't generate a new string - the random number changes but the string it gets from the <code>LineNumberReader</code> doesn't.</p> <p>As the title implies this is an Android app. <code>textbox</code> is the output area, <code>testbox</code> is for debugging (in this code it displays the random number - to check that it has changed) and <code>r</code> is a <code>Random</code></p> <p>This sample code is the <code>onClick</code> for the only button in the app.</p> <pre><code> String fileName = "\\sdcard\\Q's.txt"; try { BufferedReader br = new BufferedReader( new InputStreamReader( new DataInputStream( new FileInputStream(fileName)))); // Get the number of lines in the text file numLines = Integer.parseInt(br.readLine().toString().trim()); // get a random number and write it to the test text box int rnd = r.nextInt(numLines); String tmp = Integer.toString(rnd); testBox.setText(tmp); // get random number - go to line - save in String "text" LineNumberReader rdr = new LineNumberReader(br); rdr.setLineNumber(r.nextInt(numLines)); textBox.setText(rdr.readLine()); } catch (FileNotFoundException e) { textBox.setText("FileNotFound"); e.printStackTrace(); } catch (IOException e) { textBox.setText("IOException"); e.printStackTrace(); } catch (NumberFormatException nfe){ textBox.setText("Number Formated Wrong"); } finally {} </code></pre> <p>What am I doing wrong? I have tried closing and reseting <code>br</code> and <code>rdr</code>and can't seem to get it to work.</p>
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