Question

What is the final value of variable x?

x = 0
msg = "hello there!"
for character in msg:
    if character=="e":
        x += 1

Answer 1

Answer:-

The final value of variable x is 3.

Explanation:-

Initial value of variable x is 0.

The value of variable msg is "hello there!"

There are 12 characters in string "hello there!"

The for loop will be executed 12 times for each character of msg variable value.

Every value of character variable in loop will be checked for equality with the value 'e'. When value character variable will be equal to 'e', the value of x will be incremented by 1.

The steps in loop:-

1. The initial value of character='h', which is not equal to 'e' so no change in the value of x.

2. Next value of character='e' ,  which is equal to 'e' so the value of x will be incremented by 1. Now the value x becomes 1.

3. Next value of character='l' ,  which is not equal to 'e' so no change in the value of x.

4. Next value of character='l' ,  which is not equal to 'e' so no change in the value of x.

5. Next value of character='o' ,  which is not equal to 'e' so no change in the value of x.

6. Next value of character=' ' i.e space ,  which is not equal to 'e' so no change in the value of x.

7. Next value of character='t' ,  which is not equal to 'e' so no change in the value of x.

8. Next value of character='h' ,  which is not equal to 'e' so no change in the value of x.

9. Next value of character='e' ,  which is equal to 'e' so the value of x will be incremented by 1. Now the value x becomes 2.

10. Next value of character='r' ,  which is not equal to 'e' so no change in the value of x.

11. Next value of character='e' ,  which is equal to 'e' so the value of x will be incremented by 1. Now the value x becomes 3.

12. Next value of character='!' ,  which is not equal to 'e' so no change in the value of x.

End of for loop

From above steps we can see that the value x is incremented 3 times by 1.

So, the final value of x is 3.