/*

 * Copyright (c) 2019, 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.

 */

/**

 * @test

 * @summary Verify that definite assignment works (legal code)

 */

public class DefiniteAssignment1 {

    public static void main(String[] args) {

        int a = 0;

        {

        int x;

        switch(a) {

            case 0: x = 0; break;

            default: x = 1; break;

        }

        if (x != 0)

            throw new IllegalStateException("Unexpected value.");

        }

        {

        int x;

        switch(a) {

            case 1: x = 1; break;

            case 0:

            default: x = 0; break;

        }

        if (x != 0)

            throw new IllegalStateException("Unexpected value.");

        }

        {

        int x;

        switch(a) {

            case 1: x = 1; break;

            case 0:

            default: x = 0;

        }

        if (x != 0)

            throw new IllegalStateException("Unexpected value.");

        }

        {

        int x;

        switch(a) {

            case 0 -> x = 0;

            default -> x = 1;

        }

        if (x != 0)

            throw new IllegalStateException("Unexpected value.");

        }

        {

        int x;

        try {

            switch(a) {

                case 1: x = 1; break;

                case 0:

                default: throw new UnsupportedOperationException();

            }

            throw new IllegalStateException("Unexpected value: " + x);

            } catch (UnsupportedOperationException ex) {

                //OK

            }

        }

        {

        int x;

        switch(a) {

            case 0 -> x = 0;

            default -> throw new IllegalStateException();

        }

        if (x != 0)

            throw new IllegalStateException("Unexpected value.");

        }

    }

    enum E {

        A, B, C;

    }

}