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  1. class A {
  2.     public static int field = 99;
  3. }
  4. class B {
  5.     public static A field = new A();
  6. }
  7. class C {
  8.     public static B field = new B();
  9. }
  10.  
  11. public class Main
  12. {
  13.     public static String foo(Class<?> clazz, String fieldName, int n)
  14.         throws NoSuchFieldException, IllegalAccessException
  15.     {
  16.         for (int i = 0; i < n - 1; ++i)
  17.         {
  18.             clazz = clazz.getField(fieldName).get(null).getClass();
  19.         }
  20.  
  21.         return clazz.getField(fieldName).get(null).toString();
  22.     }
  23.  
  24.     public static void main(String[] args)
  25.         throws NoSuchFieldException, IllegalAccessException
  26.     {
  27.         System.out.println(foo(C.class, "field", 1));
  28.         System.out.println(foo(C.class, "field", 2));
  29.         System.out.println(foo(C.class, "field", 3));
  30.     }
  31. }
  32.  
Success #stdin #stdout 0.04s 4386816KB
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Standard input is empty
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B@135fbaa4
A@330bedb4
99
https://ideone.com/vz4Ogo
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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