Filtering and Sorting Arrays of Dictionaries in Objective-C

Release Dictionary Instance: When to Say Goodbye to Memory Leaks in Objective-C

Understanding the Subtleties of NSMutableDictionary: A Guide to Key-Value Search Functions

Understanding iPhone Objects from NSDictionary PList: A Comprehensive Guide to Parsing and Accessing Nested Dictionaries

Understanding the Performance Implications of Double Brace Initialization in Java HashMaps