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POHow to sort descending contents from file and get it only 5 line
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  1. POHow to sort descending contents from file and get it only 5 line
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    copied!<p>How to read a file only 5 line and line in sort to descending. Example I have a file my.log with the following contents:</p> <pre><code>one two three four five six seven eight nine ten eleven twelve </code></pre> <p>And i want the result is as follows:</p> <pre><code>twelve eleven ten nine eight </code></pre> <p>My code now is :</p> <pre><code>import android.os.Bundle; import android.app.Activity; import android.util.Log; import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; public class MainActivity extends Activity { long sleepTime = 1000; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); String log = "/sdcard/my.log"; try { Tail(log); } catch (IOException e) { e.printStackTrace(); } } public void Tail(String filename) throws IOException { File checkfile = new File(filename); if (checkfile.exists()) { BufferedReader input = new BufferedReader(new FileReader(filename)); String currentLine = null; while (true) { if ((currentLine = input.readLine()) != null) { Log.d("MyLog", currentLine); continue; } try { Thread.sleep(sleepTime); } catch (InterruptedException e) { Thread.currentThread().interrupt(); break; } } input.close(); } else { Log.d("MyLog", "File not found..."); } } } </code></pre> <p>But this time the result is all the content in the file in print and result not sort by descending. So now the result is as below:</p> <pre><code>one two three four five six seven eight nine ten eleven twelve </code></pre> <p>Thanks.</p>
 

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