1 /*

     2  * Copyright 1998-1999 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /* @test

    25    @bug 4135795

    26    @summary Make sure that System.in.available() works

    27             when System.in is the keyboard

    28    @run ignore This test requires console (/dev/tty) input, which is not

    29                supported by the current harness

    30  */

    31 

    32 

    33 import java.io.*;

    34 

    35 public class SystemInAvailable {

    36 

    37     public static void main(String[] args) throws Exception {

    38         byte[] b = new byte[1024];

    39         System.out.print("Press <enter>: ");

    40         System.out.flush();

    41         System.in.read(b);

    42         int a = System.in.available();

    43         if (a != 0) throw new Exception("System.in.available() ==> " + a);

    44     }

    45 

    46 }