import java.io.*;
public class Kataloog2{
  public static void main(String argumendid[]) throws IOException{
    File kataloog=new File("uus");
    kataloog.mkdir();
    PrintWriter valja=new PrintWriter(
      new FileWriter("uus"+File.separator+"katse.txt")
    );
    valja.println("Fail katsetamiseks");
    valja.close();
  }
}