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