71 lines
2.3 KiB
Java
71 lines
2.3 KiB
Java
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* more instanceof cases
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*/
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public class Main {
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public static void main(String args[]) {
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Iface1 face1;
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ImplA aa = new ImplA();
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ImplBSub bb = new ImplBSub();
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boolean aaOkay, bbOkay;
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face1 = aa;
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face1 = bb;
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System.out.println("iface1.mFloaty = " + face1.mFloaty + " " + face1.mWahoo);
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System.out.println("aa.mFloaty = " + aa.mFloaty + " " + aa.mWahoo);
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System.out.println("bb.mWhoami = " + bb.mWhoami);
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aaOkay = face1 instanceof ImplA;
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System.out.print("aaOkay (false) = ");
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System.out.println(aaOkay);
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bbOkay = face1 instanceof ImplB;
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System.out.print("bbOkay (true) = ");
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System.out.println(bbOkay);
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bb = (ImplBSub) face1;
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try {
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aa = (ImplA) face1;
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}
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catch (ClassCastException cce) {
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System.out.println("Caught a ClassCastException (expected)");
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}
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Iface1[] faceArray;
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ImplA[] aaArray = new ImplA[5];
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ImplBSub[] bbArray = new ImplBSub[5];
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faceArray = aaArray;
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faceArray = bbArray;
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System.out.print("instanceof Serializable = ");
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System.out.println((Object)aaArray instanceof java.io.Serializable);
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System.out.print("instanceof Cloneable = ");
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System.out.println((Object)aaArray instanceof java.lang.Cloneable);
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System.out.print("instanceof Runnable = ");
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System.out.println((Object)aaArray instanceof java.lang.Runnable);
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aaOkay = faceArray instanceof ImplA[];
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System.out.print("aaOkay (false) = ");
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System.out.println(aaOkay);
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bbOkay = faceArray instanceof ImplB[];
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System.out.print("bbOkay (true) = ");
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System.out.println(bbOkay);
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}
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}
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