A group of students is writing a program that will convert their letter grades into a 4.0 scale. For their program, they want a letter grade to be entered to be converted into the program. Which programming construct should be used to accomplish the selection and conversion?(1 point)
Responses
if-then-else
if-then-else
condition
condition
while loop
while loop
for loop
if-then-else
The programming construct that should be used to accomplish the selection and conversion is the if-then-else construct.
The programming construct that should be used to accomplish the selection and conversion of letter grades into a 4.0 scale is the "if-then-else" statement.
Here's how the "if-then-else" statement works in this context:
1. First, the program should prompt the user to enter a letter grade.
2. Then, the program can use the "if-then-else" statement to check what letter grade was entered and convert it into the corresponding 4.0 scale grade.
3. The "if-then-else" statement evaluates a condition and performs different actions based on whether the condition is true or false.
4. In this case, the condition could be a series of comparisons to check which letter grade was entered. For example:
- If the entered grade is "A", the program will assign the value 4.0.
- If the entered grade is "B", the program will assign the value 3.0.
- If the entered grade is "C", the program will assign the value 2.0.
- And so on...
5. After the conversion, the program can then continue with any further processing or display the converted 4.0 scale grade to the user.
In summary, the "if-then-else" statement is the most suitable programming construct to use in this scenario to perform the selection and conversion of letter grades into a 4.0 scale.