Evaluating String Index Expressions in Python

What are the values of the following expressions?

In each line, assume that:

s = "Hello" t = "World"

s[len(s) // 2]

To evaluate the expression s[len(s) // 2] given that s = "Hello":

1. First, we need to determine the length of the string s. The string "Hello" has a length of 5.

2. Next, we calculate len(s) // 2, which is 5 // 2. In Python, the // operator performs integer (floor) division, so 5 // 2 equals 2.

3. Now, we access the character at index 2 of the string s. The string "Hello" has the following indices:

   • Index 0: 'H'
   • Index 1: 'e'
   • Index 2: 'l'
   • Index 3: 'l'
   • Index 4: 'o'

4. Therefore, s[2] corresponds to the character 'l'.

So, the value of the expression s[len(s) // 2] is 'l'.