Data Structures

Data Structures

1. Lists [...,...,...]

   • Ordered, changeable, and allows duplicates
     • Elements can have different data types
       • You can add and remove elements
         • List items are indexed, the first item has index [0], the second item has index [1] etc.
           • use the len() function

2. Tuples (...,...,...)

   • Used to store multiple items in a single variable
     • Ordered, unchangeable, allow duplicates
       • You cannot add or remove elements
         • Tuple items are indexed, the first item has index [0], the second item has index [1] etc.
           • use the len() function

3. Sets {...,...,...}

   • Unordered, unchangeable, reject duplicates
     • Elements can have different data types
       • You can add and merge elements
         • Unindexed
           • use the len() function

4. Dictionaries

   • Store data in key:value format
     • Describe items
       • Can be any data type
         • ordered, changeable, and does not allow duplicates
           • use the len() function