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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. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		Set<Integer> ints = new HashSet();
  13. 		ints.add(1);
  14. 		HashSet<Number> nums = (HashSet<Number>)((HashSet)ints);
  15. 		for(Number n: nums){
  16. 			System.out.println(n);
  17. 		}
  18. 	}
  19. }
Success #stdin #stdout 0.04s 2184192KB
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https://ideone.com/NM2pYI
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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