Python :: String review

Which of the following adds a line comment in Python?

• // comment here

• # comment here

• "" comment here

• /* comment here */

Which of the following concatenates strings in Python?

• 'hello' & 'world'

• 'hello' -> 'world'

• 'hello' += 'world'

• 'hello' + 'world'

Which of the following will produce "ppp"?

• 'p' *= 3

• 'p' = 'p'*3

• 'p' * 3

• 'p' x 3

What is the output of print('python'[0:2])?

• py

• yt

• pyt

• on

What is the output of print('python'[1:4])?

• pyth

• yth

• ytho

• pyt

What is the output of print('HELLO WORLD'.lower())?

• hello world

• Hello world

• HELLO WORLD

• Hello World

How would you capitalize 'hello world'?

• 'hello world'.uppercase()

• 'hello world'.upper()

• 'hello world'.toUpper()

• 'hello world'.go_upper()

How do you get the length of a string in Python?

• x = len('hello world')

• x = sizeOf('hello world')

• x = length('hello world')

• x = 'hello world'.len()

The character '\n' is...

• new line

• number

• next

• numerical character

When concatenating strings, what is the difference between using the comma ( , ) or the plus sign (+)?

• There is no difference.

• The comma leaves a space, the plus sign does not.

• The plus sign leaves a space, the comma does not.

• The comma leaves a space, the plus sign two spaces.