Covar2.java revision 0
/*
* Copyright 2003-2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/*
* @test
* @bug 4949303 4960369 4965756
* @summary Additional unit tests for covariant returns
* @author gafter
*
* @compile -source 1.5 Covar2.java
* @run main Covar2
*/
public class Covar2 {
static class A1 {
public Long f() { return 12L; }
}
static class B1 extends A1 {
public Long f() { return 12L; }
}
static class B2 {
public int f() { return 12; }
}
static class C2 extends B2 {
public int f() { return (short)12; }
}
static class C3 extends B2 {
public int f() { return (short)12; }
}
public static void main(String[] args) {
A1 b1 = new B1();
System.out.println(b1.f());
B2 c2 = new C2();
System.out.println(c2.f());
B2 c3 = new C3();
System.out.println(c3.f());
}
}