import java.io.File;

public class hello {

public static void main(String[] args) {

File currentDir=new File(".");

System.out.println(currentDir);

File[] directories = currentDir.listFiles(File::isDirectory);

if (directories != null) {

for (File directory : directories) {

System.out.println(directory.getName());

}}

System.out.println("HOME environment variable is not set.");

}

}