如何从命令行获取文件名并输出对该文件堆排序的文件？

Question

I'm new to java and would appreciate it if someone could give me some help. Thanks in advance.

I am trying to take a filename from the command line and output that file sorted (from my Heap.java) and print it out one word per line.

Here is what I have:

public class HeapSort {

public static void main(String[] args) throws IOException {
  //public static void main(String[] args)  {   


    // Declare and instantiate a new ArrayList object
       ArrayList<String> data = new ArrayList<String>(); 

    //Declare the input file names
      String inFile = "data2415.txt";

     Scanner sc = new Scanner(new File(args[0]));

      if (0 < args.length){
         String filename = args[0];
          File file = new File(filename);
      }

        //h = reader.readLine();

      while (sc.hasNext()) data.add(sc.next());

      }


}

Answer 1

What about

  List<String> resultList = FileUtils.readlines("text.txt");
  Collections.sort(resultList);
  for (String s: resultList)
        System.out.println(s);