Top Questions

1. Why ArrayList add() and add(int index, E) complexity is amortized constant time? Why not O(1) for add(), O(n) for add(int index, E)?
   22 votes

   1 answers
2. Code Example of "obscuring" as per JLS (6.4.2. Obscuring), especially this "local variable or type can obscure a package"
   9 votes

   4 answers
3. target/ vs /target/ in .gitignore
   4 votes

   1 answers
4. Why List<String> can't simultaneously be argument of a Base-class generic method and Derived-class non-generic method?
   4 votes

   2 answers
5. Different treatment of ? in extends and super
   4 votes

   2 answers