1/* 2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/** 25 * @test 26 * @bug 8003280 27 * @summary Add lambda tests 28 * Test static method reference 29 * @compile MethodRef1.java 30 * @run main MethodRef1 31 */ 32 33public class MethodRef1 { 34 35 static interface A {void m();} 36 37 static interface B {void m(int i);} 38 39 static interface C {String m(String s);} 40 41 private static void assertTrue(boolean cond) { 42 if (!cond) 43 throw new AssertionError(); 44 } 45 46 static void foo(int x) { 47 System.out.println("MethodRef1.foo(int) " + x); 48 } 49 50 static void bar() { 51 System.out.println("MethodRef1.bar()"); 52 } 53 54 static void bar(int x) { 55 System.out.println("MethodRef1.bar(int) " + x); 56 } 57 58 static String bar(String s) { 59 return "MethodRef1.bar(String) " + s; 60 } 61 62 public static void main(String[] args) { 63 64 A a = MethodRef1::bar; //static reference to bar() 65 a.m(); 66 67 B b = MethodRef1::foo; //static reference to foo(int), (int) omitted because method foo is not overloaded 68 b.m(1); 69 70 b = MethodRef1::foo; //static reference to foo(int) 71 b.m(1); 72 73 b = MethodRef1::bar; //static reference to bar(int) 74 b.m(2); 75 76 C c = MethodRef1::bar; //static reference to bar(String) 77 assertTrue( c.m("hi").equals("MethodRef1.bar(String) hi") ); 78 } 79} 80