What is the output when following code is executed ?>>> str1 = 'hello'>>> str2 = ','>>> str3 = 'world'>>> str1[-1:]
Question
What is the output when following code is executed ?
>>> str1 = 'hello'
>>> str2 = ','
>>> str3 = 'world'
>>> str1[-1:]
Solution
The output will be 'o'.
Here's the step by step explanation:
- str1 = 'hello' assigns the string 'hello' to the variable str1.
- str2 = ',' assigns the string ',' to the variable str2.
- str3 = 'world' assigns the string 'world' to the variable str3.
- str1[-1:] is a slice operation that gets the last character of the string str1. In Python, negative indexing starts from the end of the string. So, str1[-1] will be the last character 'o'. The colon (:) in the slice operation means to get all characters from that position to the end of the string. Since there's only one character at the end, it returns 'o'.
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