Question: Write a method that converts a hexadecimal digit into a decimal value. Example: Enter a hex digit: F The decimal value for hex digit F

Write a method that converts a hexadecimal digit into a decimal value.

Example:

Enter a hex digit: F

The decimal value for hex digit F is 15

Write a method that converts a hexadecimal number into a decimal number.

Example:

ABCD =>

A*16^3 + B*16^2 + C*16^1+ D*16^0

= ((A*16 + B)*16 + C)*16+D

= ((10*16 + 11)*16 + 12)*16+13 = ?

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