H - Substrings

A substring is:

• a sequence of characters within a string

• a type of variable

• an entire string repeated twice

• a function that sorts strings

Select the correct output of the following code:

mystring = "Hello world"

sub1 = mystring[0:2]

• He

• Hel

• Hello

• llo

Select the correct output of the following code:

mystring = "Hello world"

sub2 = mystring[4:6]

• o

• o w

• w

• wo

What does mystring[-1] return if mystring = "Hello world"?

• d

• H

• o

• "

What does mystring[:5] return if mystring = "Hello world"?

• Hello

• Hello

• Hello w

• world

Which slice would return just the first letter of a string called "text"?

• text[0]

• text[1]

• text[-1]

• text[0:2]

Which of the following would return the last three characters of a string?

• string[-3:]

• string[:3]

• string[3:]

• string[-1:3]

What will

sub = mystring[6:9]

return if mystring = "Hello world"?

• wor

• orl

• llo

• rld

Which index do Python strings start at?

• 0

• 1

• -1

• 2

Select the option that is NOT a reason to use substrings.

• To increase the length of a string

• To extract a part of a string

• To manipulate specific sections of text

• To analyze portions of a string