06 March 2019

We learned about Dictionary and Hashmaps and the hash algorithm usage to store and retrieve data. we used int, string and object types for both keys and values and explored the Dictionary API

More topics covered:

• • Hash collision
  • Object Hash code as key
  • Dictionary.TryGetValue
  • Dictionary[ key ]
  • Dictionary.Add
  • Dictionary.ContainsKey
  • foreach (KeyValuePair<type, type> item in dictionaryName) …
  • Disadvantage of using object as a key

Links:

• • • Queue exercise solution (HW)
    • Class code: Dictionary introduction
    • Dictionary of string numbers – exercise solution
    • Lesson Summary Video
    • Hmoework!
    • Dicationary – MSDN link