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Java example source code file (HashCodeEquals.java)
The HashCodeEquals.java Java example source code/* * Copyright (c) 1998, 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 4141318 @summary Check that equal File instances have identical hash codes */ import java.io.File; public class HashCodeEquals { static void test(String fn1, String fn2) throws Exception { File f1 = new File(fn1); File f2 = new File(fn2); if (!f1.equals(f2)) throw new Exception("Instances with equal paths are not equal"); int h1 = f1.hashCode(); int h2 = f2.hashCode(); if (h1 != h2) throw new Exception("Hashcodes of equal instances are not equal"); } static void testWin32() throws Exception { test("a:/foo/bar/baz", "a:/foo/bar/baz"); test("A:/Foo/Bar/BAZ", "a:/foo/bar/baz"); } static void testUnix() throws Exception { test("foo/bar/baz", "foo/bar/baz"); } public static void main(String[] args) throws Exception { if (File.separatorChar == '\\') testWin32(); if (File.separatorChar == '/') testUnix(); } } Other Java examples (source code examples)Here is a short list of links related to this Java HashCodeEquals.java source code file: |
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