Hint to determining the operation (Selection lab: Fall 2023)

1. Get the operation as a string and then just work with the first character
   • For this operation, get the string
   • Then use the charAt string function to get the first character (number 0) and assign it to a character variable
   • You can use a switch statement on a character variable
2. Get the operation as a string and use that
   • This operation requires the user to be very precise on the input. If the user adds another blank at the end, this might cause a problem.
   • If you use this option, be sure to use .equals in your selection statement
   • You cannot use a string in a switch statement.