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AnonymousImplementation.java
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45 lines (37 loc) · 1.24 KB
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package typeinfo;
import typeinfo.interfacea.*;
import java.lang.reflect.*;
/**
* RUN:
* javac typeinfo/AnonymousImplementation.java && java typeinfo.AnonymousImplementation
* OUTPUT:
* public C.f()
* typeinfo.AnonymousA$1
* package C.u()
* public C.g()
* protected C.v()
* private C.w()
*/
public class AnonymousImplementation {
public static void main(String[] args) throws Exception {
A a = AnonymousA.makeA();
a.f();
System.out.println(a.getClass().getName());
// Reflection allow to do this !!!
HiddenImplementation.callHiddenMethod(a, "u");
HiddenImplementation.callHiddenMethod(a, "g");
HiddenImplementation.callHiddenMethod(a, "v");
HiddenImplementation.callHiddenMethod(a, "w");
}
}
class AnonymousA {
public static A makeA() {
return new A() {
public void f() { System.out.println("public C.f()"); }
public void g() { System.out.println("public C.g()"); }
void u() { System.out.println("package C.u()"); }
protected void v() { System.out.println("protected C.v()"); }
private void w() { System.out.println("private C.w()"); }
};
}
}