Strings

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Question: What is the function of both upper and lower syntax?

Hint 1

Answer: upper() returns a copy of the string in which all case-based characters have been uppercased. Lower() returns a copy of the string in which all case-based characters have been lowercased.

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Question: What are Boolean functions and mention some of the Boolean function we talked about?

Hint 2

Answer: Boolean functions are data types that can only have two values: True or False. Some boolean functions are: isalpha(), isnumeric(), islower(), isspace() istitle().

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Question:

Create a string with your name. Capitalize your name.

Now by using join, separate each letter by a comma.

Hint 3

Answer:

nombre = "Carla"

print nombre.upper()

a = ","

print a.join(nombre)

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Question: Once you defined a string, they cannot be changed. The replace method modifies the original string. T/F

Hint 4

Answer: False, They cannot modify the original string. They create a copy of a string, which they modify and return to the caller.

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Question:

Which of the following is correct for the replacing method so that the result is Good Morning?

s = "God Morning"

a) print s.replace["o", "oo"]

b) print s.replace("oo", "o")

c) print s.replace("o", "oo", 2)

d) print s.replace("o", "oo", 1)

Hint 5

Answer:

d) print s.replace("o", "oo", 1)

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Question: What is the correct syntax for the replace method?

Hint 6

Answer:

str.replace(old, new[, count])

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Question: What happen in the find function when we are looking for a letter that is not in the original string?

Hint 7

Answer: It returns -1

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Question:

Create a string that says "Red Car"

Find the letter C and set the starting index 1 and ending index 5.

Replace the word Car for the word Train.

Hint 8

Answer:

a = "Red Car"

a.find("C", 1, 5)

a.replace("Car", "Train")

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Question:

In the following function and commands, why ocurred an error while joining?

a = "Manuel"

b = "Peter"

print a.join(b)

Result in console: PManueleManueltManueleManuelr

Hint 9

Answer: Because by using join(), you need to use a str separator. The method join() returns a string in which the string elements of sequence have been joined by str separator.

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Question: What does the beg and end means in the find() function?

Hint 10

Answer:

The beg means the starting index and end means the ending index.