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Java example source code file (MethodRef1.java)
The MethodRef1.java Java example source code/* * Copyright (c) 2011, 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 8003280 * @summary Add lambda tests * Test static method reference * @compile MethodRef1.java * @run main MethodRef1 */ public class MethodRef1 { static interface A {void m();} static interface B {void m(int i);} static interface C {String m(String s);} private static void assertTrue(boolean cond) { if (!cond) throw new AssertionError(); } static void foo(int x) { System.out.println("MethodRef1.foo(int) " + x); } static void bar() { System.out.println("MethodRef1.bar()"); } static void bar(int x) { System.out.println("MethodRef1.bar(int) " + x); } static String bar(String s) { return "MethodRef1.bar(String) " + s; } public static void main(String[] args) { A a = MethodRef1::bar; //static reference to bar() a.m(); B b = MethodRef1::foo; //static reference to foo(int), (int) omitted because method foo is not overloaded b.m(1); b = MethodRef1::foo; //static reference to foo(int) b.m(1); b = MethodRef1::bar; //static reference to bar(int) b.m(2); C c = MethodRef1::bar; //static reference to bar(String) assertTrue( c.m("hi").equals("MethodRef1.bar(String) hi") ); } } Other Java examples (source code examples)Here is a short list of links related to this Java MethodRef1.java source code file: |
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