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Java example source code file (MinMax.java)
The MinMax.java Java example source code/* * Copyright (c) 2001, 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 4486049 * @summary min and max methods fail if size changes in between a call to size * and an attempt to iterate. * @author Josh Bloch */ import java.util.*; public class MinMax { public static void main(String[] args) { Set s = new LyingSet(); s.add("x"); if (!Collections.min(s).equals("x")) throw new RuntimeException("1: " + Collections.min(s)); if (!Collections.max(s).equals("x")) throw new RuntimeException("2: " + Collections.max(s)); s.add("y"); if (!Collections.min(s).equals("x")) throw new RuntimeException("3: " + Collections.min(s)); if (!Collections.max(s).equals("y")) throw new RuntimeException("4: " + Collections.max(s)); s.add("w"); if (!Collections.min(s).equals("w")) throw new RuntimeException("5: " + Collections.min(s)); if (!Collections.max(s).equals("y")) throw new RuntimeException("6: " + Collections.max(s)); s.clear(); s.add("x"); if (!Collections.min(s, Collections.reverseOrder()).equals("x")) throw new RuntimeException("1a: " + Collections.min(s)); if (!Collections.max(s, Collections.reverseOrder()).equals("x")) throw new RuntimeException("2a: " + Collections.max(s)); s.add("y"); if (!Collections.min(s, Collections.reverseOrder()).equals("y")) throw new RuntimeException("3a: " + Collections.min(s)); if (!Collections.max(s, Collections.reverseOrder()).equals("x")) throw new RuntimeException("4a: " + Collections.max(s)); s.add("w"); if (!Collections.min(s, Collections.reverseOrder()).equals("y")) throw new RuntimeException("5a: " + Collections.min(s)); if (!Collections.max(s, Collections.reverseOrder()).equals("w")) throw new RuntimeException("6a: " + Collections.max(s)); } } class LyingSet extends LinkedHashSet { public int size() { return super.size() + 1; // Lies, lies, all lies! } } Other Java examples (source code examples)Here is a short list of links related to this Java MinMax.java source code file: |
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