Which of the following changes the string stored in the str…

Which of the following changes the string stored in the strName variable from “Mark Smyth” to “Mark Smith”? a. strName = strName.Change(“y”, “i”) b. strName = strName.Remove(7, 1) strName = strName.Insert(7, “i”) c. strName = strName.Remove(7) strName = strName.Insert(7, “i”) d. both b and c

Answer

The correct answer is d. both b and c.

To change the string stored in the `strName` variable from “Mark Smyth” to “Mark Smith”, we need to remove the character ‘y’ at index 7 and insert the character ‘i’ in its place. Both options b and c achieve this by combining the Remove and Insert methods.

Option b performs the following actions:
1. `strName.Remove(7, 1)`: This removes 1 character starting at index 7, so the string becomes “Mark Smyth”.
2. `strName.Insert(7, “i”)`: This inserts the character ‘i’ at index 7, so the string becomes “Mark Smith”.

Option c also achieves the desired result:
1. `strName.Remove(7)`: This removes all characters starting at index 7, so the string becomes “Mark Sm”.
2. `strName.Insert(7, “i”)`: This inserts the character ‘i’ at index 7, so the string becomes “Mark Smith”.

Therefore, both options b and c will change the string from “Mark Smyth” to “Mark Smith”, making d. the correct answer.

It’s important to note that option a, `strName = strName.Change(“y”, “i”)`, is not valid as there is no Change method in the String class that can perform this specific operation. The Change method does not exist in the standard library for manipulating strings in most programming languages.