Python String Exercises
From WLCS
Objective
- You will learn to create and access characters and slices of a string
- You will learn to use a loop to traverse the characters of a string
Directions:
- Open a text editor (Applications->Accessories->gEdit Text Editor)
- Put your name at the top
- Save the file as YOURLASTNAME_ch7.txt
- Complete the exercises below in this file. If you use DrPython, then be sure to copy your code back into this file
- Be sure to number each of your answers!!
References:
Exercises
- Questions 1-11, assume you have the following following representation of the string
schoolName = "Washington Lee H.S."
00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
W | a | H | . | S | . |
What is:
schoolName[0]
schoolName[6]
schoolName[3]=”X”
schoolName[3:8]
schoolName[:10]
schoolName[15:]
schoolName[19]
len(schoolName)
len(“”)
- What range specifies “Lee”?
- What expression returns the last character of string ‘sample’?
- Create a string "The quick brown fox jumped 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 "jumped" through the end of the string
- Use the string variable s from Question 12. Create a loop that prints out every letter in the variable s
- Use the string variable s from Question 12. Create a loop that prints out every letter in s backwards starting from the end.
- Use the string variable s from Question 12. Create a loop that prints out every other letter in s starting from the beginning
Submit:
- Submit the file to School Web Lockers