Quelle Sleeper.java Sprache: JAVA

/*
* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/

/*
*
*/
public class Sleeper {

   private static final String USAGE = "Sleeper [ms]";

   public static void main(String argv[]) {

      long sleep = Long.MAX_VALUE;   // sleep indefinately if no arg is given

      // if argv[0] is present, use it to set the sleep time. ignore
      // all other arguments - some tests pass additional arguments to
      // differentiate or associate multiple sleeper processes.
      if (argv.length >= 1) {
        try {
          sleep = Long.parseLong(argv[0]);
        }
        catch (NumberFormatException e) {
          System.err.println(USAGE);
          System.exit(1);
        }
      }

      try { Thread.sleep(sleep); } catch (InterruptedException e) {};
   }
}

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