Pos02.java

/*
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
 * @test
 * @bug 6939620 7020044
 *
 * @summary  basic test for diamond (simple/qualified type-expressions)
 * @author mcimadamore
 * @compile Pos02.java
 * @run main Pos02
 */

public class Pos02 {

    static class Foo<X> {
        Foo(X x) {}
        <Z> Foo(X x, Z z) {}
    }

    void testSimple() {
        Foo<Integer> f1 = new Foo<>(1);
        Foo<? extends Integer> f2 = new Foo<>(1);
        Foo<?> f3 = new Foo<>(1);
        Foo<? super Integer> f4 = new Foo<>(1);

        Foo<Integer> f5 = new Foo<>(1, "");
        Foo<? extends Integer> f6 = new Foo<>(1, "");
        Foo<?> f7 = new Foo<>(1, "");
        Foo<? super Integer> f8 = new Foo<>(1, "");
    }

    void testQualified() {
        Foo<Integer> f1 = new Pos02.Foo<>(1);
        Foo<? extends Integer> f2 = new Pos02.Foo<>(1);
        Foo<?> f3 = new Pos02.Foo<>(1);
        Foo<? super Integer> f4 = new Pos02.Foo<>(1);

        Foo<Integer> f5 = new Pos02.Foo<>(1, "");
        Foo<? extends Integer> f6 = new Pos02.Foo<>(1, "");
        Foo<?> f7 = new Pos02.Foo<>(1, "");
        Foo<? super Integer> f8 = new Pos02.Foo<>(1, "");
    }

    public static void main(String[] args) {
        Pos02 p2 = new Pos02();
        p2.testSimple();
        p2.testQualified();
    }
}