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Exercise 1: Looping through strings

Show the output that would be generated by each of the following program fragments:

a) for ch in "zebra":
       print(ch)

b) for ch in "fish":
       print("#" + ch * 3 + " " + ch)

Exercise 2: Looping through strings, part 2

Show the output that would be generated by the following program fragment:

msg = ""
for ch in "aprilfools":
    msg = msg + chr(ord(ch) + 1)
print(msg)

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Exercise 3: Playing around with strings

For this exercise, we’ll use the following statements:

s1 = "apple"
s2 = "banana!"

Exercise 3a: from expression to output

Predict the result of evaluating each of the following string expressions.

a) "I would like a " + s2

b) 2 * s1 + s2

c) s2[2:4]

d) s1[0] + s2[-2:] + s2[-1]

e) s2[len(s1)]

Exercise 3b: from output to expression

Build a Python expression that could construct each of the following results by performing string operations on s1 and s2.

s1 = "apple"
s2 = "banana!"

a) "nana"

b) "apple banana! apple banana! apple banana!"

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