1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 /** 18 * test calling through an interface 19 */ 20 public class Main { 21 public static void main(String args[]) { 22 int result = 0; 23 Iface2Sub1 faceObj; 24 ImplA faceObj2; 25 26 faceObj = new ImplBSub(); 27 28 result = faceObj.iFunc2(5); 29 System.out.print("ImplBSub intf: "); 30 System.out.println(result); 31 32 faceObj2 = new ImplA(); 33 result = faceObj2.iFunc2(5); 34 System.out.print("ImplA: "); 35 System.out.println(result); 36 37 objectOverrideTests(); 38 } 39 40 static void check(boolean z) { 41 if (!z) { 42 throw new AssertionError(); 43 } 44 } 45 46 static void objectOverrideTests() { 47 ObjectOverridingInterface o = 48 new ObjectOverridingInterface() { 49 public boolean equals(Object o) { 50 return true; 51 } 52 public int hashCode() { 53 return 0xC001D00D; 54 } 55 public String toString() { 56 return "Mallet's Mallet"; 57 } 58 public int length() { 59 return toString().length(); 60 } 61 public char charAt(int i) { 62 return toString().charAt(i); 63 } 64 public CharSequence subSequence(int s, int e) { 65 return toString().subSequence(s, e); 66 } 67 }; 68 doObjectOverrideTests(o); 69 } 70 71 private static interface SubInterface extends Cloneable, SubObjectOverridingInterface { 72 } 73 74 private static class SubInterfaceImpl implements SubInterface { 75 public int length() { 76 return 0; 77 } 78 public char charAt(int i) { 79 return '!'; 80 } 81 public CharSequence subSequence(int s, int e) { 82 return ""; 83 } 84 } 85 86 static String subObjectOverrideTests(SubInterface i) { 87 return i.toString(); 88 } 89 90 static void doObjectOverrideTests(ObjectOverridingInterface o) { 91 check(o.equals(null)); 92 check(o.hashCode() == 0xC001D00D); 93 check(o.toString().equals("Mallet's Mallet")); 94 check(subObjectOverrideTests(new SubInterfaceImpl()) != null); 95 System.out.println("objectOverrideTests: SUCCESS"); 96 } 97 } 98
