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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. import java.lang.reflect.*;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	public static void main (String[] args) throws java.lang.Exception
  12. 	{
  13. 		// your code goes here
  14. 		// ArrayList<Integer> list = new ArrayList<Integer>();
  15. 		// System.out.println(list.getClass());
  16. 		// System.out.println(list.getClass().getGenericSuperclass());
  17. 		// System.out.println(((ParameterizedType) list.getClass().getGenericSuperclass()).getActualTypeArguments()[0].getTypeName());
  18.  
  19. 		System.out.println(new C<String>("hello world!").RESOURCE_TYPE);
  20. 	}
  21.  
  22. }
  23.  
  24. class B {}
  25. final class C<T> extends B {
  26. 	public final Type RESOURCE_TYPE;
  27. 	public final T value;
  28.  
  29. 	C(T value) {
  30. 		this.value = value;
  31. 		System.out.println(this.value);
  32. 		this.RESOURCE_TYPE =
  33. 			(/*(ParameterizedType)*/ getClass().getGenericSuperclass());//.getActualTypeArguments()[0];
  34. 		System.out.println(this.RESOURCE_TYPE);
  35. 	}
  36. }
Success #stdin #stdout 0.06s 2184192KB
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Standard input is empty
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hello world!
class B
class B
https://ideone.com/gHM3ia
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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