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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. import java.lang.reflect.Field;
  8. import java.lang.reflect.Method;
  9.  
  10. /* Name of the class has to be "Main" only if the class is public. */
  11. class Ideone
  12. {
  13. 	public static void main (String[] args) throws java.lang.Exception, java.lang.IllegalArgumentException, java.lang.IllegalAccessException
  14. 	{
  15.  
  16.          Ideone i = new Ideone();
  17.          Init test = i.new Init();
  18.  
  19.          for(Field f : test.getClass().getFields()) {
  20.  
  21.      		System.out.println("nombre instancia : " + f.getName());
  22.  
  23.      		if (f.getType() == Test.class) {
  24.  
  25.      			Class<?> clazz = Ideone.Test.class;
  26.       			Method method = clazz.getMethod("getNombre");
  27. 		        Ideone.Test typ = (Ideone.Test)f.get(test);
  28.  
  29.       			method.invoke(typ);
  30.  
  31.           		System.out.println("nombre que contiene la variable test : " + typ.getNombre());
  32.      		}
  33.          }
  34.       }
  35.  
  36.       private class Init{
  37.  
  38.       	public Test sPedro = new Test("Pedro");
  39.       	public Test sPablo = new Test("Pablo");
  40.  
  41.  
  42.       }
  43.       private class Test{
  44.  
  45.       	String test;
  46.  
  47.       	public Test(String nombre){
  48.       	    test = nombre;
  49.       	}
  50.       	public String getNombre(){
  51.       		return test;
  52.       	}
  53.       }
  54.     }
Success #stdin #stdout 0.04s 4386816KB
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Standard input is empty
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nombre instancia : sPedro
nombre que contiene la variable test : Pedro
nombre instancia : sPablo
nombre que contiene la variable test : Pablo
https://ideone.com/56uMdQ
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
secret

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