Ch 8
When accessing each character in a string, such as for copying purposes, you would typically use a while loop.
False
You cannot use a for loop to iterate over the characters in a string.
False
If a whole paragraph is included in a single string, the split() method can be used to obtain a list of the sentences in the paragraph.
True
If the + operator is used on strings, it produces a string that is a combination of the two strings used as its operands.
True
Indexing works with both strings and lists.
True
The index -1 identifies the last character of a string.
True
Which method would you use to determine whether a certain substring is present in a string?
find(substring)
If the start index is ________ the end index, the slicing expression will return an empty string.
greater than
What will be displayed after the following code executes? mystr = 'yes' yourstr = 'no' mystr += yourstr * 2 print(mystr)
yesnono
What is the first negative index in a string?
-1
What are the valid indexes for the string 'New York'?
0 through 7
Indexing of a string starts at 1 so the index of the first character is 1, the index of the second character is 2, and so forth.
False
The following code will display 'yes + no': mystr = 'yes' yourstr = 'no' mystr += yourstr print(mystr)
False
The following expression is valid: string[i] = 'i'
False
The strip() method returns a copy of the string with all the leading whitespace characters removed but does not remove trailing whitespace characters.
False
What will be assigned to the variable s_string after the following code executes? special = '1357 Country Ln.' s_string = special[4:]
' Country Ln.'
What will be assigned to the variable some_nums after the following code executes? special = '0123456789' some_nums = special[0:10:2]
'02468'
What will be assigned to the variable s_string after the following code executes? special = '1357 Country Ln.' s_string = special[ :4]
'1357'
What will be the value of the variable string after the following code executes? string = 'abcd' string.upper()
'ABCD'
What will be the value of the variable string after the following code executes? string = 'abcd' string.upper()
'ABCD'
What will be the value of the variable string after the following code executes? string = 'Hello' string += ' world!'
'Hello world!'
What will be assigned to the variable s_string after the following code executes? special = '1357 Country Ln.' s_string = special[-3:]
'Ln.'
What will display after the following code executes? password = 'ILOVEPYTHON' if password.isalpha(): print('Invalid, must contain one number.') elif password.isdigit(): print('Invalid, must have one non-numeric character.') elif password.isupper(): print('Invalid, cannot be all uppercase characters.') else: print('Your password is secure!')
Invalid, must contain one number.
What list will be referenced by the variable list_strip after the following code executes? my_string = '03/07/2018' list_strip = my_string.split('/')
['03', '07', '2018']
Which method would you use to determine whether a certain substring is the suffix of a string?
endswith(substring)
What is the return value of the string method lstrip()?
the string with all leading white spaces removed
