import java.io.File;

public class CurrentDirList {
  public static void main(String []args) {
    if( args.length == 0 ) {
      System.out.println("Insufficient number of arguments!");
      return;
    }
    File currentDir = new File(args[0]);
    File files[] = currentDir.listFiles();
    for(File f : files) {
      if( f.isFile() && f.getName().substring(f.getName().length()-5).equals(".java")  ) {
        System.out.println(f.getName());
      }
    }
  }
}