Java I/O How to - Get the content of a directory via java.io.FilenameFilter

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Question

We would like to know how to get the content of a directory via java.io.FilenameFilter.

Answer

/* w ww. ja  v a  2 s  . c om*/
import java.io.File;
import java.io.FilenameFilter;

public class Main {
  public static void main(String[] args) {
    File games = new File("C:\\Test");
    File[] files = games.listFiles();
    for (File file : files) {
      System.out.println(file + " is a " + (file.isDirectory() ? "directory" : "file"));
    }
    String[] xfiles = games.list();
    for (String file : xfiles) {
      System.out.println("File = " + file);
    }
    FilenameFilter filter = new FilenameFilter() {
      public boolean accept(File dir, String name) {
        if (name.endsWith(".txt")) {
          return true;
        }
        return false;
      }
    };

    File[] yfiles = games.listFiles(filter);
    for (File doc : yfiles) {
      System.out.println("Doc file = " + doc);
    }
  }
}

The code above generates the following result.

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