Difference between revisions of "Python String Exercises"

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== Objective ==
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==Objectives==
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* You will learn to create and access characters and slices of a string
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* You will learn to create and access characters of a string
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* You will learn to access slices of a string
 
* You will learn to use a loop to traverse the characters of a string
 
* You will learn to use a loop to traverse the characters of a string
  
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== Directions ==
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==Directions==
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Create a python file named ch7_YOURLASTNAME.py
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# Open a Google Doc
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# Title the file: Python String Exercises
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# Put your name at the top
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# Complete the exercises below in this file
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# Be sure to number each of your answers!!
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* Submit the document via APS Canvas
  
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==References==
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* [[Media:Strings_Python.pptx]]
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* [http://openbookproject.net/thinkcs/python/english2e/ch07.html How to Think Like a Computer Scientist: Chapter 7]
  
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# Create a string "The quick brown fox jumped over the lazy dog." in a variable s
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==Exercises==
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* Questions 1-11, assume you have the following representation of the string
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<code>schoolName = "Washington-Lee H.S."</code>
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|}
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What is:
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#<code>schoolName[0]</code>
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#<code>schoolName[6]</code>
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#<code>schoolName[3:8]</code>
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#<code>schoolName[:10]</code>
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#<code>schoolName[15:]</code>
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#<code>schoolName[19]</code>
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#<code>len(schoolName)</code>
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#<code>len("")</code>
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#What range specifies “Lee”?
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#If you had a variable called '''sample''', how could you return the last character, even if you didn't know its length?
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# 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
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#* 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"
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#* Using string slicing, print out starting at the word "jumped" through the end of the string
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#* Using string slicing, print out starting at the word "jumps" through the end of the string
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# Use the string variable s from Question 1.  Create a loop that prints out every letter in the variable s
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# Use the string variable '''s''' from Question 11.  Create a loop that prints out every letter in the variable s
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# Use the string variable s from Question 1.  Create a loop that prints out every letter in s backwards starting from the end.
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# Use the string variable '''s''' from Question 11.  Create a loop that prints out every letter in s backwards starting from the end.
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# Use the string variable s from Question 1. Create a loop that prints out every other letter in s starting from the beginning
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# Use the string variable '''s''' from Question 11. Create a loop that prints out every other letter in s starting from the beginning
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'''Submit:'''
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* Submit the document via APS Canvas

Latest revision as of 13:13, 18 December 2017

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

  1. Open a Google Doc
  2. Title the file: Python String Exercises
  3. Put your name at the top
  4. Complete the exercises below in this file
  5. 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:

  1. schoolName[0]
  2. schoolName[6]
  3. schoolName[3:8]
  4. schoolName[:10]
  5. schoolName[15:]
  6. schoolName[19]
  7. len(schoolName)
  8. len("")
  9. What range specifies “Lee”?
  10. If you had a variable called sample, how could you return the last character, even if you didn't know its length?
  11. 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
  12. Use the string variable s from Question 11. Create a loop that prints out every letter in the variable s
  13. Use the string variable s from Question 11. Create a loop that prints out every letter in s backwards starting from the end.
  14. 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
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