import java.nio.file.*;
import java.io.IOException;

public class CreatingDirectories {
  public static void main(String[] args) {
    Path relPath = Paths.get("junkDir");
    createSingleDirectory(relPath);                                    // Create directory in current
    createSingleDirectory(relPath);                                    // then try it again...

    Path absPath = Paths.get("D:/Garbage/dir1/dir2/dir3");
    createSingleDirectory(absPath);                                    // Try creating as single directory
    createMultipleDirectories(absPath);                                // Now do it right
    createMultipleDirectories(absPath);                                // then try it again...
  }

  static void createSingleDirectory(Path path) {
    try {
      Files.createDirectory(path);
      path = path.toAbsolutePath();
      System.out.println("\n" + path + " directory created.");
    } catch(NoSuchFileException e) {
      System.err.println("\nDirectory creation failed:\n" + e);
    } catch(FileAlreadyExistsException e) {
      System.err.println("\nDirectory creation failed:\n" + e);
    } catch(IOException e) {
      System.err.println("\nDirectory creation failed:\n" + e);
    }
  }

  static void createMultipleDirectories(Path path) {
    try {
      Files.createDirectories(path);
      path = path.toAbsolutePath();
      System.out.println("\n" + path + " directory created.");
    } catch(IOException e) {
      System.err.println("\nDirectory creation failed:\n" + e);
    }
  }

}