How can I get the filenames of all files in a folder which may or may not contain duplicates

Question

I want the names of files in an arraylist .

I have these files:

paa.jpg
maa.jpg
baa.jpg

Store them in a ArrayList with values

[paa,maa,baa]

Answer 1

This could be done in this way:

File fol = new File("D:/folder");
File[] listFiles= fol.listFiles();
    for (int i = 0; i < listFiles.length; i++) {
      if (listFiles[i].isFile()) {
        System.out.println("File " + listFiles[i].getName());
      } else if (listFiles[i].isDirectory()) {
        System.out.println("Directory " + listFiles[i].getName());
      }
    }

Answer 2

List<String> results = new ArrayList<String>();


File[] files = new File("/path/to/the/directory").listFiles();
//If this pathname does not denote a directory, then listFiles() returns null. 

for (File file : files) {
    if (file.isFile()) {
        results.add(file.getName());
    }
}