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POHow do check if user-input path is correct?
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  1. POHow do check if user-input path is correct?
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    copied!<p>I need to be prove about user-input path.<br> Coz when user give not folder path but file path. Program "fall down".<br> I understand that this is a bug but how to be ensure about user path correct.</p> <p><strong>Code:</strong> </p> <pre><code> class PathAndWord { final String path; final String whatFind; PathAndWord(String path, String whatFind) { this.path = path; this.whatFind = whatFind; } boolean isProperlyInitialized() { return path != null &amp;&amp; whatFind != null; } } public void askUserPathAndWord() { try { tryToAskUserPathAndWord(); } catch (IOException | RuntimeException e) { System.out.println("Wrong input!"); e.printStackTrace(); } catch (InterruptedException e) { System.out.println("Interrupted."); e.printStackTrace(); } } private void tryToAskUserPathAndWord() throws IOException, InterruptedException { PathAndWord pathAndWord = readPathAndWord(); if (pathAndWord.isProperlyInitialized()) { performScan(pathAndWord, "GameOver.tmp"); System.out.println("Thank you!"); } else { System.out.println("You did not enter anything"); } } private PathAndWord readPathAndWord() throws IOException { System.out.println("Please, enter a Path and Word (which you want to find):"); BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in)); String path = readPath(bufferedReader); String whatFind = readWord(bufferedReader); return new PathAndWord(path, whatFind); } private String readPath(BufferedReader bufferedReader) throws IOException { System.out.println("Please enter a Path:"); return bufferedReader.readLine(); } private String readWord(BufferedReader bufferedReader) throws IOException { System.out.println("Please enter a Word:"); return bufferedReader.readLine(); } private void performScan(PathAndWord pathAndWord, String endOfWorkFileName) throws InterruptedException { BlockingQueue&lt;File&gt; queue = new LinkedBlockingQueue&lt;File&gt;(); File endOfWorkFile = new File(endOfWorkFileName); CountDownLatch latch = new CountDownLatch(2); FolderScan folderScan = new FolderScan(pathAndWord.path, queue, latch, endOfWorkFile); FileScan fileScan = new FileScan(pathAndWord.whatFind, queue, latch, endOfWorkFile); Executor executor = Executors.newCachedThreadPool(); executor.execute(folderScan); executor.execute(fileScan); latch.await(); } </code></pre> <p><strong>Qustions:</strong> </p> <ul> <li>How do check if user input <code>path</code> is correct? </li> <li>If path isn't correct to show message that <code>path is wrong! Try again</code>. </li> <li>Able to check word - <code>whatFind</code> whether it's correct, too. </li> <li>Does need before point do?</li> </ul>
 

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