package algs11;
import stdlib.*;
/* ***********************************************************************
 *  Compilation:  javac Wget.java
 *  Execution:    java Wget url
 *
 *  Reads in a URL specified on the command line and saves its contents
 *  in a file with the given name.
 *
 *  % java Wget http://www.cs.princeton.edu/IntroProgramming/datafiles/codes.csv
 *
 *************************************************************************/

public class XWget {

  public static void main(String[] args) {
    args = new String[] { "http://docs.oracle.com/javase/8/docs/api/java/lang/Object.html" };

    // read in data from URL
    String url = args[0];
    In in = new In(url);
    if (!in.exists ())
      System.exit (1);
    String data = in.readAll();

    String filename = url.substring(url.lastIndexOf('/') + 1);
    if (filename.length () <= 0) {
      StdOut.println (data);
    } else {
      // write data to a file
      Out out = new Out(filename);
      out.println(data);
      out.close();
      StdOut.println ("Output in file \"" + filename + "\"");
    }
  }
}