Difference between revisions of "Python String Exercises"
From WLCS
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− | + | ==Objectives== | |
+ | * You will learn to create and access characters of a string | ||
+ | * You will learn to access slices of a string | ||
+ | * You will learn to use a loop to traverse the characters of a string | ||
− | # Create a string "The quick brown fox | + | ==Directions== |
+ | # Open a Google Doc | ||
+ | # Title the file: Python String Exercises | ||
+ | # Put your name at the top | ||
+ | # Complete the exercises below in this file | ||
+ | # Be sure to number each of your answers!! | ||
+ | * Submit the document via APS Canvas | ||
+ | |||
+ | ==References== | ||
+ | * [[Media:Strings_Python.pptx]] | ||
+ | * [http://openbookproject.net/thinkcs/python/english2e/ch07.html How to Think Like a Computer Scientist: Chapter 7] | ||
+ | |||
+ | ==Exercises== | ||
+ | * Questions 1-11, assume you have the following representation of the string | ||
+ | |||
+ | <code>schoolName = "Washington-Lee H.S."</code> | ||
+ | |||
+ | {|- border="1" | ||
+ | | 0 | ||
+ | | 1 | ||
+ | | 2 | ||
+ | | 3 | ||
+ | | 4 | ||
+ | | 5 | ||
+ | | 6 | ||
+ | | 7 | ||
+ | | 8 | ||
+ | | 9 | ||
+ | | 10 | ||
+ | | 11 | ||
+ | | 12 | ||
+ | | 13 | ||
+ | | 14 | ||
+ | | 15 | ||
+ | | 16 | ||
+ | | 17 | ||
+ | | 18 | ||
+ | |- | ||
+ | | W | ||
+ | | a | ||
+ | | s | ||
+ | | h | ||
+ | | i | ||
+ | | n | ||
+ | | g | ||
+ | | t | ||
+ | | o | ||
+ | | n | ||
+ | | - | ||
+ | | L | ||
+ | | e | ||
+ | | e | ||
+ | | | ||
+ | | H | ||
+ | | . | ||
+ | | S | ||
+ | | . | ||
+ | |} | ||
+ | |||
+ | What is: | ||
+ | #<code>schoolName[0]</code> | ||
+ | #<code>schoolName[6]</code> | ||
+ | #<code>schoolName[3:8]</code> | ||
+ | #<code>schoolName[:10]</code> | ||
+ | #<code>schoolName[15:]</code> | ||
+ | #<code>schoolName[19]</code> | ||
+ | #<code>len(schoolName)</code> | ||
+ | #<code>len("")</code> | ||
+ | #What range specifies “Lee”? | ||
+ | #If you had a variable called '''sample''', how could you return the last character, even if you didn't know its length? | ||
+ | # Create a string "The quick brown fox jumps over the lazy dog." in a variable s | ||
#* Print out the first letter in s using the brackets (e.g. s[NUM]) | #* Print out the first letter in s using the brackets (e.g. s[NUM]) | ||
#* Print out the letter "q" using s and the index 4 | #* Print out the letter "q" using s and the index 4 | ||
Line 7: | Line 80: | ||
#* Using string slicing, print out the word "brown" | #* Using string slicing, print out the word "brown" | ||
#* Using string slicing, print out the word "lazy" | #* Using string slicing, print out the word "lazy" | ||
− | #* Using string slicing, print out starting at the word " | + | #* Using string slicing, print out starting at the word "jumps" through the end of the string |
− | # Use the string variable s from Question | + | # Use the string variable '''s''' from Question 11. Create a loop that prints out every letter in the variable s |
− | # Use the string variable s from Question | + | # Use the string variable '''s''' from Question 11. Create a loop that prints out every letter in s backwards starting from the end. |
− | # Use the string variable s from Question | + | # Use the string variable '''s''' from Question 11. Create a loop that prints out every other letter in s starting from the beginning |
+ | |||
+ | '''Submit:''' | ||
+ | * Submit the document via APS Canvas |
Latest revision as of 14:13, 18 December 2017
Contents
Objectives
- You will learn to create and access characters of a string
- You will learn to access slices of a string
- You will learn to use a loop to traverse the characters of a string
Directions
- Open a Google Doc
- Title the file: Python String Exercises
- Put your name at the top
- Complete the exercises below in this file
- Be sure to number each of your answers!!
- Submit the document via APS Canvas
References
Exercises
- Questions 1-11, assume you have the following representation of the string
schoolName = "Washington-Lee H.S."
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
W | a | s | h | i | n | g | t | o | n | - | L | e | e | H | . | S | . |
What is:
schoolName[0]
schoolName[6]
schoolName[3:8]
schoolName[:10]
schoolName[15:]
schoolName[19]
len(schoolName)
len("")
- What range specifies “Lee”?
- If you had a variable called sample, how could you return the last character, even if you didn't know its length?
- Create a string "The quick brown fox jumps over the lazy dog." in a variable s
- Print out the first letter in s using the brackets (e.g. s[NUM])
- Print out the letter "q" using s and the index 4
- Print out the letter "x" using s and the corresponding index
- Using string slicing, print out the word "brown"
- Using string slicing, print out the word "lazy"
- Using string slicing, print out starting at the word "jumps" through the end of the string
- Use the string variable s from Question 11. Create a loop that prints out every letter in the variable s
- Use the string variable s from Question 11. Create a loop that prints out every letter in s backwards starting from the end.
- Use the string variable s from Question 11. Create a loop that prints out every other letter in s starting from the beginning
Submit:
- Submit the document via APS Canvas