Search results
Results from the WOW.Com Content Network
Sorted arrays are the most space-efficient data structure with the best locality of reference for sequentially stored data. [citation needed]Elements within a sorted array are found using a binary search, in O(log n); thus sorted arrays are suited for cases when one needs to be able to look up elements quickly, e.g. as a set or multiset data structure.
Self-balancing binary search trees can be used in a natural way to construct and maintain ordered lists, such as priority queues.They can also be used for associative arrays; key-value pairs are simply inserted with an ordering based on the key alone.
The simplest kind of query is to locate a record that has a specific field (the key) equal to a specified value v.Other common kinds of query are "find the item with smallest (or largest) key value", "find the item with largest key value not exceeding v", "find all items with key values between specified bounds v min and v max".
However, the collection operations that alter the number of elements (insert/add/remove) will throw exceptions as these operations are unsupported by arrays. The for statement accepts either arrays or Iterable s. All collections implement Iterable. This means that the same short syntax can be used in for-loops.