Question

Matlab code

Here is the command that asks the user if he/she wants to play again:

playAgain = input(Would you like to play again? (y/n): ', 's');

Your task is to write a validation loop that only strings that start with a letter "y" or a letter "n", irrespective of cases, are considered to be valid input.

Answer 1

Program:

clc;

playAgain = input('Would you like to play again? (y/n): ', 's'); % Accept input

while(ne(playAgain,'Y') && ne(playAgain,'y') && ne(playAgain,'N') && ne(playAgain,'n')) % validate the input is correct or not
  
disp('Not a valid choice'); % it print not a valid choice
  
playAgain = input('Would you like to play again? (y/n): ', 's'); % Accept input

end

disp('Valid Input!') % print valid input

Output: