Is there a more efficient way of counting instances of a string with treemaps?
60433
How to count the number of occurrences of an element in a List
1540
Count the number of occurrences of a character in a string in Javascript
120670
Java List Sorting: Is there a way to keep a list permantly sorted automatically like TreeMap?
39387
In Java, for a string x, what is the runtime cost of s.length()? Is it O(1) or O(n)?
36917
The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
60555
How to count occurrences of a column value efficiently in SQL?
129848
Counting the number of occurences of characters in a string
99008
Objective-C: Count the number of times an object occurs in an array?
126062
Counting files in leaves of directory tree
100262
Improved Van Emde Boas tree based map in Java
13767
Number of nodes in binary tree given number of leaves
8277
Difference between HashMap, LinkedHashMap and TreeMap
34833
COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better?
98355
Is the set of all possible binary strings countable?
35365
What is the easiest/best/most correct way to iterate through the characters of a string in Java?
148734
Time complexity analysis. choosing operator for counting number of times a line of code runs
548
What is an efficient way to implement a singleton pattern in Java?