Write a switch statement to convert a letter grade into an equivalent numeric value on a fourpoint

Question:

Write a switch statement to convert a letter grade into an equivalent numeric value on a fourpoint scale. Set the value of the variable gradeValue to 4.0 for an A, 3.0 for a B, 2.0 for a C, 1.0 for a D, and 0.0 for an F. For any other letter, set the value to 0.0 and display an error message.

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