/*

 * Copyright (c) 2018, 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

 * @bug 8206986

 * @summary Check definite (un)assignment for in switch expressions.

 * @run main/othervm --enable-preview ExpressionSwitchDA

 */

public class ExpressionSwitchDA {

    public static void test1() {

        int i;

        int j = 0;

        switch (j) {

            case 0 : i=42; break;

            default: i=42;

        }

        System.out.println(i);

    }

    public static void test2(){

        int i;

        int j = 0;

        switch (j) {

            case 0  -> i=42;

            default -> i=42;

        }

        System.out.println(i);

    }

    public static void test3(){

        int i;

        int j = 0;

        switch (j) {

            case 0  -> { i=42; }

            default -> { i=42; }

        }

        System.out.println(i);

    }

    public static void test4(){

        int i;

        int j = 0;

        int k = switch (j) {

            case 0  -> i=42;

            default -> i=42;

        };

        System.out.println(i);

    }

    public static void test5(){

        int i;

        int j = 0;

        int k = switch (j) {

            case 0  -> { i=42; break 42; }

            default -> i=42;

        };

        System.out.println(i);

    }

    public static void test6(){

        int i;

        int j = 0;

        int k = switch (j) {

            case 0  -> i=42;

            default -> { i=42; break 42; }

        };

        System.out.println(i);

    }

    public static void test7(){

        int i;

        int j = 0;

        int k = switch (j) {

            case 0  -> { i=42; break 42; }

            default -> { i=42; break 42; }

        };

        System.out.println(i);

    }

    public static void test8() {

        int i;

        int j = 0;

        switch (j) {

            case 0 : i=42; break;

            default: throw new NullPointerException();

        }

        System.out.println(i);

    }

    public static void test9() {

        int i;

        int j = 0;

        switch (j) {

            case 0 -> i=42;

            default ->  throw new NullPointerException();

        }

        System.out.println(i);

    }

    public static void test10() {

        int i;

        int j = 0;

        switch (j) {

            case 0 -> { i=42; System.out.print(i);}

            default ->  throw new NullPointerException();

        }

        System.out.println(i);

    }

    public static void test11() {

        int i;

        int j = 0;

        switch (j) {

            case 0 -> { i=42; System.out.print(i);}

            default ->  { throw new NullPointerException(); }

        }

        System.out.println(i);

    }

    public static void test12() {

        int i;

        int j = 0;

        switch (j) {

            case 0 : i=42; break;

            default: return;

        }

        System.out.println(i);

    }

    public static void test13() {

        int i;

        int j = 0;

        switch (j) {

            case 0 -> i=42;

            default -> { return; }

        }

        System.out.println(i);

    }

    public static void test14() {

        int i;

        int j = 0;

        switch (j) {

            case 0 -> { i=42; }

            default -> { return; }

        }

        System.out.println(i);

    }

    public static void test15() {

        final int i;

        int j = 0;

        switch (j) {

            case 0 -> { i=42; }

            default -> { i=42; }

        }

        System.out.println(i);

    }

    public static void main(String[] args) {

        test1();

        test2();

        test3();

        test4();

        test5();

        test6();

        test7();

        test8();

        test9();

        test10();

        test11();

        test12();

        test13();

        test14();

        test15();

    }

}