40 lines
1.2 KiB
Java
40 lines
1.2 KiB
Java
// typeinfo/AnonymousImplementation.java
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// ©2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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// Anonymous inner classes can't hide from reflection.
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import typeinfo.interfacea.*;
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class AnonymousA {
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public static A makeA() {
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return new A() {
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public void f() { System.out.println("public C.f()"); }
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public void g() { System.out.println("public C.g()"); }
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void u() { System.out.println("package C.u()"); }
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protected void v() { System.out.println("protected C.v()"); }
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private void w() { System.out.println("private C.w()"); }
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};
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}
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}
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public class AnonymousImplementation {
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public static void main(String[] args) throws Exception {
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A a = AnonymousA.makeA();
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a.f();
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System.out.println(a.getClass().getName());
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// Reflection still gets into the anonymous class:
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HiddenImplementation.callHiddenMethod(a, "g");
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HiddenImplementation.callHiddenMethod(a, "u");
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HiddenImplementation.callHiddenMethod(a, "v");
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HiddenImplementation.callHiddenMethod(a, "w");
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}
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}
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/* Output:
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public C.f()
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AnonymousA$1
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public C.g()
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package C.u()
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protected C.v()
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private C.w()
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*/
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