Problem Solving using Python and R - UNIT I STRINGS MCQS

What method would you use to convert all characters in a string to lowercase in Python?

• lowercase()

• toLower()

• lower()

• convertToLower()

Which of the following methods can be used to find the index of a substring in a string?

• indexOf()

• find()

• search()

• locate()

How do you format a string to include a variable in Python?

• format("Hello, {name}")

• "Hello, %s" % name

• f"Hello, {name}"

• All of the above

What will be the output of the following code: print("Hello"[1:4])?

• Hel

• llo

• ell

• Hello

Which of the following statements about strings in Python is true?

• Strings are mutable.

• Strings can be changed after they are created.

• Strings are immutable.

• Strings can only contain letters.

What is the result of the following operation: "Hello" + " World"?

• Hello World

• HelloWorld

• Hello + World

• Hello, World

Which method would you use to remove whitespace from the beginning and end of a string?

• trim()

• strip()

• clean()

• removeSpaces()

What will be the output of the following code: print("Python".replace("P", "J"))?

• Jython

• Python

• PythoJ

• JythoJ

How do you access the first character of a string s in Python?

• s[0]

• s[1]

• s.first()

• s.charAt(0)

What will be the output of the following code: print("abc" * 3)?

• abcabcabc

• abcabc

• abcabcabcabc

• 3abc