Strings
Mizoram Board · Class 11 · Computer Science
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Quick Quiz: Strings
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Which of the following is the correct way to create a string in Python?
What is the index of the character 'W' in the string 'Hello World'?
What does the expression 'Hello' * 3 return?
Strings in Python are immutable. This means:
Sample Questions
Which operators can be used with strings in Python?
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+ (concatenation), * (repetition), in (membership)
Strings support + for joining strings, * for repeating strings, and 'in' for checking if a substring exists. Subtraction (-) is not supported for strings.
What will str1[2:5] return if str1 = 'Programming'?
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ogr
Slicing str1[2:5] starts from index 2 and ends at index 4 (5 is exclusive). In 'Programming': P=0, r=1, o=2, g=3, r=4. So indices 2, 3, 4 give 'ogr'.
Which string methods return a boolean value?
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islower(), isupper(), startswith(), isalnum()
Methods like islower(), isupper(), startswith(), endswith(), isalnum() return True or False. The replace() method returns a modified string, not a boolean.
What does len('Hello World!') return?
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12
The len() function counts all characters including spaces and punctuation. 'Hello World!' has 12 characters: H-e-l-l-o-space-W-o-r-l-d-!
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