50 lines
1.3 KiB
Java
50 lines
1.3 KiB
Java
// typeinfo/InnerImplementation.java
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// (c)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://OnJava8.com for more book information.
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// Private inner classes can't hide from reflection
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import typeinfo.interfacea.*;
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class InnerA {
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private static class C implements A {
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public void f() {
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System.out.println("public C.f()");
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}
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public void g() {
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System.out.println("public C.g()");
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}
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void u() {
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System.out.println("package C.u()");
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}
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protected void v() {
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System.out.println("protected C.v()");
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}
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private void w() {
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System.out.println("private C.w()");
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}
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}
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public static A makeA() { return new C(); }
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}
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public class InnerImplementation {
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public static void
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main(String[] args) throws Exception {
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A a = InnerA.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 private 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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InnerA$C
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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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