fork download
copy 
  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. class Ideone
  8. {
  9. 	public static void main (String[] args) throws java.lang.Exception
  10. 	{
  11. 		Ideone ideone = new Ideone();
  12. 		ideone.mainlogic();
  13. 	}
  14. 	public void mainlogic() {
  15. 		InstrumentedHashSet<String> s = new InstrumentedHashSet<String>();
  16. 		s.addAll(Arrays.asList("A", "I", "P"));
  17. 		System.out.println(s.getAddCount());
  18. 	}
  19. 	class InstrumentedHashSet<E> extends HashSet<E> {
  20. 		private int addCount = 0;
  21. 		public InstrumentedHashSet(){
  22. 		}
  23. 		public InstrumentedHashSet(int initCap, float loadFactor) {
  24. 			super(initCap, loadFactor);
  25. 		}
  26. 		@Override public boolean add(E e) {
  27. 			addCount++;
  28. 			return super.add(e);
  29. 		}
  30. 		@Override public boolean addAll(Collection<? extends E> c){
  31. 			boolean result = false;
  32. 			for(E e : c) {
  33. 				if (this.add(e)) result = true;
  34. 			}
  35. 			return result;
  36. 		}
  37. 		public int getAddCount() {
  38. 			return addCount;
  39. 		}
  40. 	}
  41. }
Success #stdin #stdout 0.07s 380160KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
3
https://ideone.com/40sVC6
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!