Question 1: What is the output of the following program?
str1 = '{2}, {1} and {0}'.format('a', 'b', 'c')
str2 = '{0}{1}{0}'.format('abra', 'cad')
print(str1, str2)
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(A) c, b and a abracad0
(B) a, b and c abracadabra
(C) a, b and c abracadcad
(D) c, b and a abracadabra
Answer: (D)
Explanation: String function format takes a format string and an arbitrary set of positional and keyword arguments. For str1 ‘a’ has index 2, ‘b’ index 1 and ‘c’ index 0. str2 has only two indices 0 and 1. Index 0 is used twice at 1st and 3rd time.
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