Multiple Choice Questions -strings

The given Python statement is concatenating two strings: "a" and "bc". The output of this statement will be the string "abc".

The output of example.count('l') is 2 because the count() method in Python returns the number of occurrences of a specified value in a string. In this case, 'l' appears twice in the string "hello", so the count is 2.

The given Python statement is slicing the string "abcd" starting from index 2 till the end of the string. Therefore, the output will be "cd".

A string is a sequence of characters enclosed in either single quotes, triple quotes, or double quotes. Single quotes are used to represent a string that contains only one character, while double quotes are used for strings that contain more than one character. Triple quotes are used for multiline strings or strings that span multiple lines. Therefore, all of the options mentioned (single quote, triple quote, and double quote) can be used to enclose a string.

The output of the code will be 1. The find() function in Python returns the index of the first occurrence of the specified substring within the string. In this case, the substring "e" is found at index 1 in the string "helle".

The given code reverses the string "helloworld" using slicing syntax [::-1]. This means it starts from the last character and goes backwards, resulting in the output "dlrowolleh".

The format function, when applied on a string, returns a formatted string. It allows for the insertion of values into specific positions within the string by using placeholders and arguments. The function converts the arguments into strings and replaces the placeholders in the original string with the corresponding values. Therefore, the correct answer is "str" as the format function returns a string.

The output of the code will be 4. The rfind() function in Python returns the highest index of the substring "e" in the string "helle". Since "e" appears at index 1 and index 4 in the string, the highest index is 4.

The operator "-" cannot be used with strings. This is because the "-" operator is used for subtraction in arithmetic operations, and it does not have any meaning when applied to strings. Strings are sequences of characters, and subtraction is not a meaningful operation for them. Therefore, the "-" operator cannot be used with strings.

The given Python code first assigns the string "helloworld" to the variable "example". Then, it uses slicing with a step of 1 (i.e., [::1]) to reverse the string. The reversed string is "dlrowolleh". Finally, the code checks if the reversed string starts with the letter "d". Since it does, the output will be "true".