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  1. import java.util.*;
  2. import java.lang.*;
  3.  
  4. class Main
  5. {
  6.     static <T> Class<T> getPrimitive(Class<T> wrapper)
  7.     throws NoSuchFieldException, IllegalAccessException {
  8.         return (Class<T>)wrapper.getDeclaredField("TYPE").get(null);
  9.     }
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		System.out.println(getPrimitive(Long.class));
  13.     	System.out.println(getPrimitive(Float.class));
  14.     	System.out.println(getPrimitive(Integer.class));
  15. 	}
  16. }
Success #stdin #stdout 0.06s 380160KB
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Standard input is empty
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long
float
int
https://ideone.com/Wy93Gd
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

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