Using the PathMatcher interface to filter a directory - Java File Path IO

Java examples for File Path IO:Directory Search

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Introduction

java.nio.file.PathMatcher interface provides a method of matching a filename using a glob.

It has a single method matches, which accepts a Path argument.

If the file matches the glob pattern, then it returns true. Otherwise, it returns false.

Demo Code

import java.io.IOException;
import java.nio.file.DirectoryIteratorException;
import java.nio.file.DirectoryStream;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.PathMatcher;
import java.nio.file.Paths;

public class Main {
  public static void main(String[] args) {
    // Using the PathMatcher interface to filter a directory
    Path directory = Paths.get("C:/Program Files/Java/jdk1.7.0/bin");
    PathMatcher pathMatcher = FileSystems.getDefault().getPathMatcher("glob:java?.exe");
    try (DirectoryStream<Path> directoryStream = Files.newDirectoryStream(directory, "java*.exe")) {
      for (Path file : directoryStream) {
        if (pathMatcher.matches(file.getFileName())) {
          System.out.println(file.getFileName());
        }/* w  ww . ja  va  2s.  c o m*/
      }
    } catch (IOException | DirectoryIteratorException ex) {
      ex.printStackTrace();
    }

  }
}

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