CS 170 Exam Three Terms and Concepts

Previous material

You are expected to remember and be able to use the concepts that were covered on Exams 1 and 2, such as assignment statements, functions, for and while loops, accumulation patterns and selection (if/else/elif) statements, mod operation, functions for manipulating strings, among other things.

Lists

• lists: know how to create lists, index list elements, manipulate lists, change the contents of lists, know len, min and max functions, concatenation, list accumulation loops, list methods (such as append, remove, sort)

Files

• files: how to work with files including open function, various ways to read data from files, especially f.read() and using a for loop over a file line by line
• split: method for strings, including default empty argument and using string delimiter arguments

Strings

• string methods: know how to use find, count, upper, lower, replace methods on strings, know how to do multiple assignment and return

Mutability

• mutable and immutable objects: understand what mutable and immutable mean, know which data types fit into which category

Dictionaries

• dictionaries: know what Python dictionaries are, know how to use them, know why/when to use them, know how to store values in a dictionary, access values using a key, know the keys and values methods for dictionaries, know how to use a for loop to loop through dictionary items