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 instance method reference 29 * @compile MethodRef2.java 30 * @run main MethodRef2 31 */ 32 33public class MethodRef2 { 34 35 static interface A {String m();} 36 37 static interface B {String m(int i);} 38 39 private static void assertTrue(boolean cond) { 40 if (!cond) 41 throw new AssertionError(); 42 } 43 44 String moo() { 45 return "moo"; 46 } 47 48 String wahoo() { 49 return "wahoo"; 50 } 51 52 String wahoo(int x) { 53 return "wahoo " + x; 54 } 55 56 public static void main(String[] args) { 57 58 MethodRef2 mr = new MethodRef2(); 59 60 A a = mr::moo; //instance reference to moo() 61 assertTrue( a.m().equals("moo") ); 62 63 a = new MethodRef2()::wahoo; //instance reference to wahoo() 64 assertTrue( a.m().equals("wahoo") ); 65 66 B b = mr::wahoo; //instance reference to wahoo(int) 67 assertTrue( b.m(4).equals("wahoo 4") ); 68 } 69} 70