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Jun 22nd, 2018
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  1. Integer i = 0;
  2.  
  3. Integer i = new Integer(0);
  4.  
  5. Integer i = 0;
  6.  
  7. Integer i = Integer.valueOf(0);
  8.  
  9. List<Integer> is = new ArrayList<Integer>();
  10. is.add(1); // auto-boxing
  11. is.add(2);
  12. is.add(3);
  13.  
  14. int sum = 0;
  15. for (int i : is) // auto-unboxing
  16. {
  17. sum += i;
  18. }
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