1 /*
   2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 // Simple loop that runs for specified period of time.
  25 // Pass time in seconds as a parameter.
  26 public class SimpleLoop {
  27 
  28     public static void main(String[] args) throws Exception {
  29         if ((args.length < 1) || (args[0] == null)) {
  30             throw new IllegalArgumentException("Expecting one argument: time to run (seconds)");
  31         }
  32         int howLong = Integer.parseInt(args[0]);
  33 
  34         for (int i=0; i < howLong; i++) {
  35             try { Thread.sleep(1000); } catch (InterruptedException e) {}
  36             System.out.print(".");
  37         }
  38     }
  39 }