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  1. import java.util.*;
  2. import java.lang.*;
  3.  
  4. class Main
  5. {
  6. 	public static void main (String[] args) throws java.lang.Exception
  7. 	{
  8. 		HashSet<Integer> set1 = new HashSet<Integer>();
  9.  
  10.         set1.add(2);
  11.         set1.add(4);
  12.  
  13.         set1.add(8);
  14.         set1.add(9);
  15.         HashSet<Integer> set2 = new HashSet<Integer>();
  16.         set2.add(2);
  17.         set2.add(6);
  18.         set2.add(8);
  19.         set2.add(9);
  20.         HashSet<Integer> set3 = new HashSet<Integer>();
  21.         set3.add(2);
  22.         set3.add(4);
  23.         set3.add(8);
  24.         set3.add(9);
  25.         set1.removeAll(set2);
  26.         set1.removeAll(set3);
  27.         System.out.println(set1);
  28. 	}
  29. }
Success #stdin #stdout 0.03s 245632KB
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[]
https://ideone.com/qTGbhX
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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