QUESTION $2$

Rewrite the following switch statement as one nested if$-$else statement $($elseif clauses may be used$).$ Assume that there is a variable letter and that it has been initialized.

switch letter

case $\text{'}x\text{'}$

disp$(\text{'}$Hello$\text{'})$

case ${\{}^{\text{'}}{Y}^{\text{'}},{?}^{\text{'}}{Y}^{\text{'}}\}$

disp$(\text{'}$Yes$\text{'})$

case $\text{'}$Q$\text{'}$

disp$(\text{'}$Quit$\text{'})$

otherwise

disp$(\text{'}$Error$\text{'})$

end

ANSWER