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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.lang.reflect.*;
  6. import java.io.*;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	static class ScheduledView<T> {}
  12. 	static class WantedClass {}
  13. 	static class SomeOtherClass {}
  14.  
  15. 	static ScheduledView<WantedClass> wantedField;
  16. 	static ScheduledView<SomeOtherClass> someOtherField;
  17.  
  18. 	public static void main (String[] args) throws java.lang.Exception
  19. 	{
  20. 		for (Field field : Ideone.class.getDeclaredFields()) {
  21. 			Type type = field.getGenericType();
  22. 			if (type instanceof ParameterizedType) {
  23. 				ParameterizedType ptype = (ParameterizedType) type;
  24. 				if (ptype.getRawType() == ScheduledView.class) {
  25. 					if (ptype.getActualTypeArguments().length == 1
  26. 					    && ptype.getActualTypeArguments()[0] == WantedClass.class) {
  27. 					  System.out.println(field.getName());    	
  28. 				    }
  29. 				}
  30. 			}
  31. 		}
  32. 	}
  33. }
Success #stdin #stdout 0.1s 320576KB
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wantedField
https://ideone.com/mFKbiZ
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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