write the code that prints the value entered from the keyboard to the screen as all characters swapcase. in matlab

You can use the input function to get the value entered from the keyboard and then use the swapcase function to swap the case of characters. Here's the code:

main.m
str = input('Enter a string: ', 's'); % prompt the user for input
swapped = swapcase(str); % swap the case of characters
disp(swapped); % display the swapped string
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In this code, 's' as the second argument to the input function is used to specify that the input should be read as a string. The swapcase function swaps the case of characters and disp function is used to display the swapped string.